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Rooting and installing a custom ROM on the Lenovo A820


Welcome to another tutorial about installing a ROM on your phone. Again, we’re taking advantage of the flexibility of Android to put customised software on replacing the original Chinese-only operating system supplied by Lenovo.

For this simple step-by-step guide, we’re going to be using a Lenovo A820 and using the Flashtool software to install a customer recovery and then the new English Lambda ROM.

Lamba is a great new ROM that is being regularly updated. It offers a nearly-stock Android experience and has a simple-to-use and highly customisable touch installer which makes the whole process painless and smooth.

Before we start though, a disclaimer: by flashing over USB or installing custom ROMs, you may be voiding your warranty. We take no responsibility if your phone is damaged or bricked by following these instructions.

Initially, you need to make sure you have installed the Lenovo USB drivers. Download the drivers, the Flashtool and the recovery image and ROM.

Turn off the phone (don’t use the quick boot option) and take out the battery. Open up Device Manager and plug the phone in via USB – be ready to quickly right click on the device that appear and choose “Update driver”. Using the wizard, select the drivers folder you downloaded previously. If you are having issues, installing the drivers, use USBDview to ensure that you have deleted any existing MediaTek USB drivers that might be on your computer.

Next, either load the ROM zip file onto a micro-SD card and insert it into your phone or connect the phone to the computer and copy the ROM zip file to the internal SD card.

You are now ready to start following the instructions in the tutorial video below.

Embed this video:

The topics covered in this tutorial are as follows:

All the downloads you need to follow this tutorial are linked here:

Lenovo USB drivers
Recovery image
English ROM for Lenovo A820 (v.2.3.5a)
English ROM for Lenovo A820 (v.2.3.3)
    → ROM update Lenovo A820 (v2.3.3 to v2.3.4)

Do you have a preferred ROM for the Lenovo A820? Or is this your choice too? If you try this out yourself, do leave a comment to say how you found the process or if any questions at all.

by Jon M

315 Responses to “Rooting and installing a custom ROM on the Lenovo A820”

  1. rakib 28 December 2015 at 10:04 Permalink

    I need a recovary.img for lenovo a 328.

  2. Lis 12 June 2015 at 22:17 Permalink


    I am trying to download the Flash tool, but I keep getting an error message ‘Error not Found – links unavailable’. Could you please advise where I can download this tool so that I can follow the video and restore my Lenovo a820 mobile.

    All the other links are working.

    Thank you.

    • Mobile Network Comparison 12 June 2015 at 22:21 Permalink

      What’s the exact link you’re using?

      • Lis 16 June 2015 at 17:38 Permalink

        I am using your link above that goes to

        • Mobile Network Comparison 16 June 2015 at 18:02 Permalink

          Then which link and then which button?

          • Lis 17 June 2015 at 08:15 Permalink

            There are no links after that only an error message as follows:

            Links unavailable

            Reasons for this may include:
            The link has been removed for violating our terms of service.
            The link has been deleted by the uploaded user.
            The link has been expired.
            The link is invalid. Please check the URL.


  3. Paul Marchant 11 April 2015 at 11:39 Permalink

    Hi I have a Lenovo A396 Dual SIM mobile that I purchased from China.
    What do I need to change it to English OS android?
    At the moment it is Android 2.3.5 Kernel 3.10.17 Software A369_s162_140258
    Any help would be great, as I cannot install Google Play Store.
    Great site by the way.

  4. Irimia 6 March 2015 at 14:00 Permalink

    I have a problem with Lenovo Usb Drivers I can’t install it because when i choose Update driver and i select the folder says to me that is no driver in that folder i have an Windows 7 x64 !

  5. fahad 12 January 2015 at 13:31 Permalink

    kidly need assistance…. i have install many times all of these files
    Lenovo USB drivers
    → Flashtool
    → Recovery image
    → English ROM for Lenovo A820 (v.2.3.5a)
    → English ROM for Lenovo A820 (v.2.3.3)
    → ROM update Lenovo A820 (v2.3.3 to v2.3.4)
    but it alwasy install ez downloader

  6. fahad 12 January 2015 at 12:16 Permalink

    i have downloaded all supporting files but when i install drivers it installs ez down-loader instead

    • Mobile Network Comparison 13 January 2015 at 03:54 Permalink

      You’re clicking a fake advert instead of the download link.

      • fahad 13 January 2015 at 12:56 Permalink

        thnx… i have installed. but now i m in big trouble…
        my touch screnn is totally messed up..
        top part is bottom now and right part is correspondig to left part
        kindly help

      • fahad 13 January 2015 at 13:25 Permalink

        one thing more sim card are also not working.

      • fahad 16 January 2015 at 03:22 Permalink

        kindly help me…. after flashing touch is totally messed up and sim card is also not wrking

  7. sarah 3 January 2015 at 07:52 Permalink

    Good day! Is it applicable to lenovo A328?

  8. Aaron 23 December 2014 at 04:21 Permalink

    Hello! Even after i watched the video and seen those instruction…I still dont get it..How to root my lenovo…How can i get flash tool in laptop?

  9. Aziz 24 November 2014 at 22:56 Permalink

    Dialer is running full screen so you can not scroll down the power cont bar while in call.

    thanks anyway stable rom well done

  10. Robert 20 November 2014 at 05:25 Permalink

    let know about lenovo A850 i have not enough space in my memmory and i have external memmory but i want move all my important files in my internal memmory especially my games but i can’t move it to my external memmory …can i have alink or site that can find the “move to SD” program…thank you i need response

  11. I.nfraR.ed 19 November 2014 at 10:37 Permalink

    Not possible. JB4.2 is the best you can get on this phone. There’s a small chance a newer android would be available in the future.
    Don’t be fooled by this fake site you linked.

  12. Alex 18 November 2014 at 19:50 Permalink

    I have a question regarding the new 4.5 android lollipop – I would like to know whether it’s possible to update the OS to this on the A820. I have found this website, but am not sure whether to trust it?

    Secondly, my phone has been rooted to android 4.1.2 with google play. Is it possible to update directly to say 4.4 or potentially 4.5, or do I need to install 4.2, then 4.3 and then 4.4?

    Thanks in advance!

  13. MKD 4 November 2014 at 13:38 Permalink

    This site with video video and links etc really helped me bite the bullet. Here’s my Nov 2014 writeup of upgrading my Lenovo A820 to Lambda ROM 2.4.x … AND I also have the internal memory as 4GB rather than as 2+2GB

  14. Lk 10 October 2014 at 01:37 Permalink

    Could you please give me the link to installation of the drive thanks

    • Mobile Network Comparison 10 October 2014 at 02:13 Permalink

      As already stated, we don’t have an A820 so can’t test and hence can’t recommend. But you should be able to find a ROM yourself. Otherwise check back on our YouTube channel in case we get a chance to do it later.

  15. Lk 9 October 2014 at 23:11 Permalink

    So what is a situ on to my problem ?

  16. Lk 9 October 2014 at 22:27 Permalink

    Thanks would you leave me a link with updated zip files i need to replace my ROM and whate are my steps after installing a new one i guess it will be lambada one
    Thanks a lot for your help

  17. L.K 9 October 2014 at 13:51 Permalink

    Hi I have a problem with internal memory it’s always running out .i have external SD but lots of apps i am using daily can jot be moved there .please help me to change the settings and safe all on SD .
    Using A820 Lenovo thanks

  18. Paul 31 August 2014 at 16:31 Permalink

    A quick note of thanks and congratulations on such a fantastic tutorial!

    Even a newbie like me found it easy to update my A820 (about 6 months ago) and it’s been working really well ever since.

    Just a quick question if I may – have you tried the meteos mtk6589 rom edit app to increase the system partition, with the excellent lambda 2.3.4? If so, how did it go?

    Again, thanks for taking the time to help newbies like me.

    • Mobile Network Comparison 2 September 2014 at 02:44 Permalink

      Thanks for your kind comment and glad it’s working well for you. We haven’t the ROM edit app and don’t have our A820 any more but if you decide to experiment please let us know how you get on.

  19. SK3 7 August 2014 at 06:36 Permalink

    Hello, I saw from OTA updater that there’s a new ROM 2.4.1, but when I downloaded the file, I can’t upgrade, because I am currently using 2.3.4. So, how can I get the other rom, and what’s included in the new updates? Thanks.

  20. farid 4 August 2014 at 03:39 Permalink

    how to root lenovo a880???

  21. Jiri 2 August 2014 at 17:11 Permalink

    Thank you very much for the instructions. I finnally managed to flash my a820 and install ROM! (The trickiest thing was to install properly USB drivers…).
    Could you please help me to upgrade v. 2.3.5 to the latest 2.4.1 ? As I understood the Version 2.4.1 is just upgrade and needs v. 2.4 to be already installed. But I can’t find anywhere full version 2.4 or at least upgrade..

  22. Edson 17 July 2014 at 16:15 Permalink

    Hello mnc in my A820 did not show the same menu for installation, does not appear to install rom zip from sdcard. cranked up the call volume down and volume up buttons at the same time, I wonder if something’s wrong?

  23. Vali 15 July 2014 at 16:06 Permalink

    wich one should i select?

  24. Vali 14 July 2014 at 20:27 Permalink

    i’m geting the next error when i try to instal usb2ser_2kxp.inf

  25. Vali 9 July 2014 at 10:13 Permalink

    hei!the download links aren’t working.i click download,goes to mirror creator,i click on Download now (6mb) but i get a fucking instaler who directs me to another site where i have to pay 3$ for registration.fuck fuck fuck.i upgraded my rooted a820 to stock and it’s piece of shit now,no play store, do i get the right downloads?

  26. Cazzers 22 May 2014 at 15:26 Permalink

    I just did an ota update to s139(don’t judge me), lost the root that was already set up on the phone whenn I received it. Supersu app gone also. Can no longer open google play. But although i got some Chinese apps with the update, I still have the English language and the rest of the phone is working fine, just no google play. My question is, do you recommend I follow your tutorial to try to bring google play back to life? I have no backup. Any help would be of help 🙂

  27. SK3 17 April 2014 at 11:24 Permalink

    I was looking for a blue-tooth earphone, and have tried several brands, but the result is not good. Either the volume is low, or the voice quality is bad. But with other models, the earphones worked fine. Any suggestions to tune the Bluetooth?

  28. Rens 14 April 2014 at 12:55 Permalink


    I would like to try this, but I cannot seem to find the English ROM file. All other required files (USB drivers, flash tool, recovery image) are fine, but none the links for Enlglish ROMs seem to work. Please let me know where I can find the right files.
    Many thanks!

  29. Cristian 6 April 2014 at 08:52 Permalink

    I bought a Lenovo A820 frum UK. But i have the following problems
    -child mode is not working
    -guest mode is not working
    -energy smart can not be turned off
    Do you have any suggestions?

  30. Cristian 5 April 2014 at 09:47 Permalink

    I bought this phone, it is rooted and i have this problems:
    data connection is not working one first sim
    child mode is not working
    guest mode is not working
    energy smart can not be turned off
    Any suggestions?
    Thank you!

  31. Idowu 3 April 2014 at 17:57 Permalink

    I installed the ROM and all went well. It worked so smoothly that I decided to do it another time and try the other launcher. Unfortunately, now I’m getting a ” E: Can’t Mount /emmc. Any possible ways to solve this problem.

  32. Lovisa 3 April 2014 at 13:33 Permalink

    Hey folks, my internet connection on my lenovo does not work. Wifi works fine, but no data connection what so ever. It says it on, and registered on vodafone 3g network, but get nothing. The sim is in the right slot, so that’s not it. Installed a new ROM, the multi language one from here, but it did not help. Anyone had this problem? Cheers guys.

  33. nzdave71 28 February 2014 at 22:06 Permalink

    Hi MNC, I wanting to install cwm and rom on the A820 following your tutorial here but have a few questions as I’m worried about bricking the phone.
    first thing does is matter what version mt6589 chip is as some forums say there are different one and flashing the wrong cwm to wrong chip can brick it?
    second thing is my software version is android 4.1.2, build: lenovo A820_S138_130419 when I try the ota update to A820_S150_130925 the istall fails and boots into recovery mode which is in chinese of cause which i can’t read so just press power button and phone restarts ok, so will this affect any flashing procedure?
    reading the forums there is alot of confusing info about what cwm to use with what chipset etc, just not want to damage phone as its the wife’s and her only one.
    I tried to install twrp through goo manager from google play but when searching for the open script recovery it says none is found.
    Any advise will be appreciated.

    • Mobile Network Comparison 3 March 2014 at 16:20 Permalink

      Hi, we haven’t heard of any issues with different “versions” of the same SoC. Our experience was that the files we link here work fine on many different A820 handsets. One thing we would caution though is to not use apps to flash things if you can avoid it as that’s slightly more risky. Let us know how you get on if you decide to go ahead.

  34. khurram 11 February 2014 at 16:19 Permalink

    i just rooted the phone and all went well but there’s just one issue

    When i try to update the rom through the OTA updater or when i try to download something from google play, it does not do so and give me error 403.. what’s up with that and how to deal with it?

  35. Mobile Network Comparison 9 February 2014 at 16:18 Permalink

    Hi guys – our Lenovo A850 is now live so please let us know your thoughts 🙂

  36. Tamer Basiouni 3 February 2014 at 11:47 Permalink

    My lenovo A820t
    I bought it couple of days ago; I started working on it yesterday; the battery was at 31%; at 15% it alerted me; I continued using till 11%; connect the USB cable provided and it didn’t charge from the laptop; I connected the provided 700mA adopter while still working on it over WiFi; it continued falling till 6% although the indicator showed it was charging; it maintained the 6% level for a while, I stopped working for an hour or so, the screen turned off alright, but after the hour I found it still at 6% NO change!!!!
    I turned it off completely and left it to charge overnight.
    This morning I tried to power it back on, but NO LUCK 🙁
    Yesterday, I turned it on and off 2-3 times with no troubles.

    Any suggestions?!?!
    Thanks for every thing

  37. Amine 2 February 2014 at 21:05 Permalink

    Okay I was using this Rom for about one month: the GPS works fine outside, battery life is about one and a half day, wifi signal is perfect … in general it’s fine.

    bugs :
    a soft reboot when you connect it to USB.
    sometimes the calls log shows the number and not the name.
    when you share internet via WLAN before activating the Wifi, it craches !

    • Bill 3 February 2014 at 09:24 Permalink

      The soft reboot problem seems to be caused by ES File Explorer (as least it was in mine). Since I removed that and used a different file explorer I have had no reboots.

      • Amine 3 February 2014 at 09:46 Permalink

        Thank you Bill, what about the calls log ?? There is any solution for this ?? I remember that this problem was in the Etotalk rom too.

        • Bill 3 February 2014 at 17:23 Permalink

          I am using 2.3.5 (and others before that). I have never had a problem with the caller ID being displayed. Since the update to 2.3.5, I do have this problem with Bluetooth in the car and don’t know who is calling me as I only get the number!

          Like the being a chemist!

    • Mobile Network Comparison 4 February 2014 at 11:43 Permalink

      Is the call log issue due to formatting of the stored numbers? And can you ever get wifi hotspot to work?

      • I.nfraR.ed 4 February 2014 at 21:41 Permalink

        CallerID issue has been fixed for final 2.4. Tethering too, it’s a common flaw in JB4.1.2, although it is intended to be like that due to some carriers’ requests.

  38. DaGY 30 January 2014 at 14:28 Permalink

    Hello there am back with ma Lenovo A789 stock recovery with SP Flash thnx for your piece of advice..

  39. DaGY 28 January 2014 at 16:41 Permalink


  40. DaGY 28 January 2014 at 16:32 Permalink

    what is that ? can show me how please?

  41. DaGY 28 January 2014 at 16:24 Permalink


  42. DaGY 28 January 2014 at 16:14 Permalink

    THANKS!!I used English ROM for Lenovo A820 (v.2.3.5a)

  43. DaGY 28 January 2014 at 15:37 Permalink

    thnx! am done with ma A789 too..

  44. Haldy 27 January 2014 at 17:55 Permalink

    Here are the pictures:
    Real photos of my device:

    Photo taken from Internet – original A820 just for comparison:

    As I said before, I don’t know origins of this phone, it’s from friend of my friend :-).

    • Mobile Network Comparison 27 January 2014 at 17:57 Permalink

      Crazy that they are making fakes of Lenovos now. If you can track down any more info we’d love to hear about it (and even get our hands on one for more tests).

  45. Bill 27 January 2014 at 12:08 Permalink

    There is now a 2.4 version of the ROM available.

  46. Haldy 25 January 2014 at 21:39 Permalink

    Hello guys,
    I need your help, I’m already desperate :-/.
    I have a A820 and I cannot succeed to flash the recovery.
    I’m trying with CWM & CWM_6.0.3.2_by_I.nfraR.ed.
    I’m using Flashtool_v3.1304.0.119(20130206). I know the first thing you tell me, that I need to have a right driver installed, but i think I have it.
    When I’m connecting the phone without battery, its not detected on the USB port at all (tried on 3 different computer/different slots/cables).
    So I think the right procedure is to pull out the battery for few seconds, put it back, choose Download in Flash Tools and when i see searching for the device, connect the phone. In that time phone is recognized by PC and i see in the bottom status bar in Flash tools also the COM port and “Mediatek Preloader USB VCOM Port (COM6). So I think the driver is ok. But that’s all :-(.
    The flashing doesn’t begin. I think I have everything right, but still cannot flash the recovery. I tried 3 different PCs with Win7 32b & Win8.1. No success even on W7.
    I loaded scatter file, unchecked Preloader, I have chosen right CWM, checked “DA DL All With Check Sum” and I have chosen also “Do not switch the speed”.
    I already checked lot of guides, but everywhere is the same -> the phone is starting flashing even without battery, but this is not my case :-(.

    Any idea pls ?

    • Mobile Network Comparison 25 January 2014 at 22:41 Permalink

      Your main priority is to get the Flashtool to see the phone. Try again with the versions we link in the post and let us know.

      • Haldy 26 January 2014 at 18:34 Permalink

        I think the Flashtool (I used the version from your link) cannot see the phone, because its connected in right mode just for few seconds after i plug in the battery.
        I tried also the latest version of Mobileuncle Tools (v2.9.9) and I also succeeded to root the phone. But I’m still not able to flash any recovery. When the phone is rebooting to recovery its not loaded so its booting back to Android. Now it looks like i have no recovery at all.

        • Mobile Network Comparison 27 January 2014 at 02:53 Permalink

          Sounds like the drivers are no installed correctly. If it only flashes up for 1-2 seconds that’s definitely the case. Go back and make sure that’s working properly.

          • Bill 27 January 2014 at 11:19 Permalink

            I did it via Mobile Uncle. Obtain the image from the downloaded file and copy to the sd card. Copy the ROM to the sd card. Go into Mobile Uncle and use that to load the ROM (details in my earlier posts above)

          • Haldy 27 January 2014 at 17:08 Permalink

            Thank you for advice, but I think I found, where is the problem: the device is not a Lenovo A820, but some Chinese fake. Unfortunately I don’t know origins of this phone (it’s from friend of my friend ). It is probably MTK6589, but not from Lenovo. I think it’s some producer called Alps, as you can see also on the pictures bellow, but I didn’t found any info about such model (Alps A820). Maybe it’s just info from Mobileuncle, which doesn’t needs to be accurate. So I think, that flashing is probably not working for me because the phone is not a Lenovo A820. Maybe even if i would able to flash the recovery, this ROM doesn’t needs to be working with that phone. So I have at least root, and I was able to copy and run gapps. I will probably leave it as it is, to not screw it up completely . Anyway thx for your opinions.


            • Mobile Network Comparison 27 January 2014 at 17:40 Permalink

              Wow! What does the phone actually look like? Can you send us some photos compared to the photos we published in our review?

              How did you go about getting a fake?

  47. 3399 24 January 2014 at 18:32 Permalink

    Hey! Have I bricked the phone?

    When I try to install full rom through CWM, the installer shows: “Opening update package…” and then resets to CWM main menu. If I reboot the phone, it gets stuck after showing lenovo logo. Just a black screen with backlight.

    It all happened when I tried to update fully working “infrared” v.2.3.2 rom with v2.3.2 to v2.3.3 and v2.3.3. to v2.3.4

    Any help is appreciated!

  48. Dave 20 January 2014 at 15:21 Permalink

    Many thanks.
    Zippyshare didn’t work for me, but Bayfiles did – with your very helpful hints.
    I do have Adblock running, but it still allowed some really confusing Popups.

  49. Dave 20 January 2014 at 14:54 Permalink

    Thanks for your reply, but I seem to have fallen at the very first hurdle. If I click on a link I’m taken to Mirrorcreator website.
    There’s a huge DOWNLOAD banner and the name of the 6MB of Lenovo drivers in a .Zz file.
    If I click on DOWNLOAD, I’m forced to sign up for a Rookplay file sharing site that needs my credit card (“no charge”) before I can download the file.
    Further down the previous Mirrorcreator webpage is a list of alternative(?) sharing sites, but they want me to run a 300kB .exe ‘download’ file, which, again, I’m loathe to do.
    What am I missing?
    Sorry to be a pain.

    • Mobile Network Comparison 20 January 2014 at 15:01 Permalink

      Go to Mirrorcreator. Click one of the Download links (“Click here”). e.g. ZippyShare. Click on your “preferred download link”. Close any popups. Click orange “Download Now” in top right – ignore all other download buttons. Your direct download will start immediately.

      With Bayfiles just click on your “preferred download link”, close any popups then click “Premium download” button. With Solidfiles just click on your “preferred download link”, close any popups then click green “Direct download” button. Similarly for all the rest…

      It’s best if you have AdBlock installed. As with all one-click download sites, you just have to be careful to ignore all ads, popups and fake download buttons. Always choose free slow download rather than fast download if given a choice.

      Never give your CC details to anyone or run any executable files from advertisers.

  50. Dave 20 January 2014 at 12:07 Permalink

    How can I download the required files without having to join Rookplay (the directe download site)? They ask for a credit card number and I have to draw the line at that.
    Many thanks,

    • Mobile Network Comparison 20 January 2014 at 13:46 Permalink

      None of the links require you to sign up for anything or pay anything. Just read carefully and make sure you don’t click on any adverts.

  51. DaGY 16 January 2014 at 06:14 Permalink

    can I use this procedure to lenovo A789 ? thnx

  52. daagydd 14 January 2014 at 16:04 Permalink

    How do I download the files.. ? Really disappointed to be REDIRECTED such this..

  53. TIM 5 January 2014 at 21:35 Permalink

    I think I got the USB driver sorted by turning the phone on and plugging it in, although I ended up trying so much stuff it’s hard to say what worked in the end.

    Either way, my downfall was not getting the flashtool ready before connecting the phone. Without the flashtool fired up and primed the device would connect to the computer then immeditaely disconnect which led me to assume the drivers weren’t working. Key instruction for me is to prime the flashtool then plug the phone in. Also, for those not initiated with downloading stuff beware that many of the sites will try and fool you into installing their download software. Otherwise, very helpful guide – thanks very much.

  54. Mark 5 January 2014 at 20:32 Permalink

    Hi from a complete novice.
    Please confirm I only need 1 of the Roms or both and update?
    Also I install usb driver, flashtool,Recovery image,USBDview onto computer then follow video tutorial.
    Please forgive my ignorance.


    • Mobile Network Comparison 5 January 2014 at 20:33 Permalink

      You only need one ROM. And all you need to install on your computer is the USB driver and then Flashtool to start the tutorial. Good luck!

      • Mark 12 January 2014 at 15:56 Permalink

        Thankyou worked a treat.

        Once you have run flashtool, to update or change to latest rom do you run flashtool and recovery image each time? or with update zip on phone just do boot and select update from sd card, or select latest rom and install?


        • Mobile Network Comparison 12 January 2014 at 17:12 Permalink

          Have you seen our next tutorial in the series about the best way to updating CyanogenMod?

          It’s basically the same for the A820 – just flash the ROM over the top from recovery. There might even be OTA update available.

          • khurram 11 February 2014 at 19:27 Permalink

            can we have cynogen mod on lenovo a820 as well ?

            • I.nfraR.ed 12 February 2014 at 07:54 Permalink

              No. MediaTek does not disclose their proprietary source code and also there’s no source code for the kernel for A820.

  55. TIM 4 January 2014 at 18:50 Permalink


    I cannot install the USB drivers. I;ve tried all the tricks; downloading and installing through device manager (says no drivers found), removing existing drivers using USBdview and trying again, running the Lenovo USB installer.. (all doesn’t work). I’m running Windows 7. Any other suggestions?


  56. David 3 January 2014 at 10:03 Permalink

    GPS not working on v.2.3.5a without WLAN, GPS test is showing GPS but can’t show my location…

    also I can’t get SMS delivery report, showing status:pending

    Any ideas on how to resolve this?

    • Mobile Network Comparison 3 January 2014 at 13:36 Permalink

      What network are you on? And have you tried any of the GPS tools apps?

      • Bill 3 January 2014 at 13:57 Permalink

        Just checked mine, which was working fine. Mobile Uncle showed the European setup. Just checked again, and it’s reverted to the China pool. I’ll unset it and see what happens.

        • Bill 3 January 2014 at 14:07 Permalink

          I deleted the 2 gps files (config and log). I got a lock (50 secs indoors- weather is awful). Mobile Uncle now shows the UK/European setup. This has now been set, so I hope it stays like that.

  57. Paddy 3 January 2014 at 02:21 Permalink

    Hi. Followed the instructions using the files from the links provided. Phone will not boot into recovery but instead flashes on/off with the folowing messages at the bottom:

    ==> TOOL DL image Fail!
    ==> Uboot is blocking by dl info

    Any ideas on how to resolve this? Thanks.

    • David 3 January 2014 at 08:23 Permalink

      You must check “DA DL ALL With Check Sum” this checkbox in Flash Tool…

      • Paddy 3 January 2014 at 15:17 Permalink

        Tried that but made no difference. However, I found a later version of the flashtool application and now all good. Thanks.

        • Fazil Jabbar 7 July 2014 at 14:38 Permalink

          Hi Brother,

          I face the same issue with my Lenovo S920. It would be very helpful if you share the steps you followed to fix this issue.

          Thanks in Advance,

          Fazil Jabbar

  58. Amine 1 January 2014 at 17:58 Permalink

    it works perfectly (2.3.5a) !! I had an Etotalk Rom before. let me test it a few days and I’ll share my experience.

    • Bill 2 January 2014 at 09:29 Permalink

      Have you tried USB connection yet? Every time that I connect and try to connect via USB storage there is a soft reboot of the phone and it states that “” has stopped working.

      • Bill 2 January 2014 at 10:18 Permalink

        The message that I received was just relating to Gmail (actually estore.pop at the), presumably due to the shutdown.

        • Mobile Network Comparison 2 January 2014 at 14:28 Permalink

          What is estore?

          • Bill 2 January 2014 at 15:50 Permalink

            It seems that it is the name of the Gmail pop server. This appears just after the reboot as not working which, I assume, is due to the lack of a network at the time.

            • Mobile Network Comparison 2 January 2014 at 15:57 Permalink

              Werid – doesn’t sound official and I can’t find any record of estrong or estore. The pop server should be and the Gmail app should handle all that itself…

              • Bill 3 January 2014 at 09:14 Permalink

                Did a search…….finally. Seems that it is a bug in ES file explorer. Mystery solved, but it still reboots the phone (though this may not be the cause). I will delete ES and see if it still happens.

                • Mobile Network Comparison 3 January 2014 at 13:36 Permalink

                  Thanks for reporting back.

                • Bill 3 January 2014 at 13:50 Permalink

                  Deleted ES file explorer and there is no more rebooting. I have other ones on there which do the job as well, if not better.

  59. Ogami 30 December 2013 at 17:19 Permalink

    Hi mobile, i gota a diferent way to do this, and work, is fast easy and secure, send me u email, and i will send to you for add in this post… (if u want ofc)

  60. Noob 30 December 2013 at 15:03 Permalink

    Hi i followed the tutorial and was successful in installing the rom. However i decided to revert back to my old rom so i restored the backup that i had made beforehand. After it was finished, i tried restarting the phone but it hanged on the lenovo logo and doesn’t move from there. i tried factory reset but it cant even detect the internal memory. I need help. I can still access the custom recovery menu so i was wondering if there is a way for me to install the stock rom through the pc?

  61. Ogami 26 December 2013 at 05:02 Permalink

    I hope when 2.3.5 comes, u post for update, thx, and post full rom too
    good work

  62. Ximpox 25 December 2013 at 17:01 Permalink

    I installed ‘A820_Lambda_v2.3’ ROM as per the instructions
    Now I would like to update to v.2.3.5, what is the procedure?
    Should I install update after update (2.3->2.3.1->2.3.2->2.3.3->2.3.4->2.3.5)
    or could I go straight to 2.3.5?
    If the first alternative to be applied, should I boot the phone after each update?
    Sri for stupid question, I’m ‘fresh’ in these matters.

    • Mobile Network Comparison 25 December 2013 at 18:00 Permalink

      2.3.5 doesn’t currently have an update file, only a full install. This means you have to install it from scratch as you installed 2.3 in the first place. These instructions are best.

      We’re not sure, but you’ll probably be able to keep your apps and settings though it’s certainly worth doing a backup beforehand just in case.

  63. Bill 24 December 2013 at 20:10 Permalink

    Reported as not working. Here is the full package. It might be worth mirroring once it is confirmed as working correctly.

  64. Bill 24 December 2013 at 08:59 Permalink


    And here’s the tool for backing up the phone; it’s a PC suite and works with the A820 and A850 at least.

  65. Bill 23 December 2013 at 18:49 Permalink

    What you need to download is the Lenovousbdriver autorun from the attached link

    This installs the drivers automatically for many Lenovo phones (including the A820).

    For back up you need to use Lenovotool_1.2.4_os This is the latest version.

    I can get these off the A850, but I would need to upload them somewhere.

  66. Bill 23 December 2013 at 15:33 Permalink

    I downloaded that version and it DOESN’T work; it’s for an older phone and does not contain the drivers. I’ll check tonight to see if the version that comes with the A850 (not available to download from their website) works with the A820 and I will find a way to upload.

  67. Michael 22 December 2013 at 15:12 Permalink

    My laptop doen’t find any driver for my A820.
    I see via USBdeview that MT65xx preloader is installed.
    Do you know any tips?

    • Mobile Network Comparison 22 December 2013 at 15:18 Permalink

      Your best bet is to uninstall and try again from scratch.

      • Michael 22 December 2013 at 18:41 Permalink

        Do I need to uninstall MT65xx preloader?
        When I try again from scratch, windows doensn’t find my A820 either?
        Is there a way to do it manually?

        • Mobile Network Comparison 22 December 2013 at 19:09 Permalink

          Uninstall everything then start from the instructions from the beginning.

          • Michael 22 December 2013 at 19:19 Permalink

            you mean, everything via USBdeview?

            • Mobile Network Comparison 22 December 2013 at 19:22 Permalink


              • Michael 23 December 2013 at 08:48 Permalink

                I uninstalled everything by USBdeview
                Rebooted system and plugged in my A820. Then MT65xx preloader appears and dissapears. Then there’s no device in the device manager. IS there an other wayto install Lenovo drivers? I hope you have any suggestions…

                • Bill 23 December 2013 at 11:52 Permalink

                  See the way that I did it (above).

                  Load PDAnet drivers
                  Use 1 click root
                  Unzip the recovery image and copy the image on to the SD card.Copy the ROM onto the SD card
                  Install MobileUncle and instal the ROM using that.

                  There is Lenovo software which contains all the drivers; it came on my son’s A850, but it must be out there somewhere.

                • Bill 23 December 2013 at 12:23 Permalink

                  Ideatool contains the USB drivers as well as back up software. I haven’t tried it with the A820, but it certainly recognises the A850

                • Mobile Network Comparison 23 December 2013 at 14:06 Permalink

                  Follow the instructions to install the drivers when it briefly appears.

                • Mobile Network Comparison 23 December 2013 at 14:07 Permalink

                  Bill – if you find a link let us know and we’ll mirror it.

  68. Michael 21 December 2013 at 21:04 Permalink

    I don’t know where and how to download all required software?
    Please, help me!

  69. SK3 17 December 2013 at 01:30 Permalink

    I am currently using Lambda ROM 2.3.3, and there’s a notification about the new 2.3.4 ROM. What’s included in the new version, and do I need to upgrade? Thanks.

  70. larry 16 December 2013 at 05:51 Permalink

    Will rooting and modding the rom unlock the a820? If not, how do you unlock an a820?

  71. Pawel 14 December 2013 at 23:31 Permalink

    Great tutorial, thanks! 🙂

  72. belal 6 December 2013 at 07:16 Permalink

    Is this rom multi language? Is it has french language?

    • Mobile Network Comparison 6 December 2013 at 11:04 Permalink

      It says it is multilingual as of version 2.2. The listed locales are:

      af am ar bg bn ca cs da de el en_GB es es_US fa fi fr hi hr hu in it iw ja ko lt lv ms nb nl pl pt pt_PT ro ru sk sl sr sv sw th tl tr uk vi zu

      So it would seem that French is supported but you’ll need to try.

      You could also try this ROM:

      • Bill 8 December 2013 at 10:22 Permalink

        The S920 port is working excellently, and I have now switched to that. I can’t say if it has French though.

        • Bill 8 December 2013 at 10:25 Permalink

          Yes, just found it and it does!

          for download. Also keeps everything that was on the phone. Just do a clear cache and install as described.

          • Bill 12 December 2013 at 09:14 Permalink

            Stick with the Lambda ROM! This has too many problems with battery drain, camera and settings.

            Can’t wait for the new InfraRed version.

  73. Krid 5 December 2013 at 20:41 Permalink

    i bought this phone on ebay with preinstaled android and all that stuff. only one problem is that i have strange shsred internal memory. internal storage is 1.44gb and usb storage 2.18
    I only instlled few apps and almost run out of space. Any ideas how to change those settings. Cheers

    • Mobile Network Comparison 5 December 2013 at 20:50 Permalink

      It’s quite complicated to repartition the internal storage. Have you tried freeing up space by using the Move to SD feature?

  74. SK3 29 November 2013 at 05:46 Permalink

    I saw in some posts that they lost WCDMA (3G) after installing the Lambda ROM. Will this happen?

    • Bill 3 December 2013 at 15:09 Permalink

      I have had no problem with the 3.4 that I am currently on.

  75. RaMz 25 November 2013 at 22:01 Permalink

    My brother gave me this A820 that he bought in China. I thought it would be useless to me since i thought it can only run Chinese apps (yeah im not really a techy person so Im not really sure what to do) and Google play can’t be use. Tried searching the net and I think this is the most detailed and easy to follow tutorial. Wish me luck

  76. I.nfraR.ed 22 November 2013 at 12:42 Permalink

    Hello guys,

    Just to answer some of the questions.

    – In order to use GravityBox you need to install Xposed framework first. The Xposed installer is included in the package as a system app. Install it and it will ask for a reboot. Soft reboot works fine. Then open the installer again and activate GravityBox. IIRC it needs another restart. Then you’re good to go. Not all options seems to work, but at least it does not override my mods anymore. I use it for notification light and a couple more features.

    – Stock Jelly Bean launcher. It’s not pure stock, but yes, it is Launcher2.apk from a ZTE phone IIRC. It is missing the icons on dock, because there are no standard dialer, contacts and mms apps, so it can’t find anything to put there as shortcuts. I can modify it to support ideaFriend, but that’s not a top priority. I use NovaLauncher.

    Settings and other menus are controlled by the framework, not by the launcher. Launcher only styles home screen, dock and app drawer, that’s all.

    To accomplish a full stock JB look and feel there’s a lot to be modified. Lenovo did heavy customizations, so it’s pointless to go back to stock. And it’s not a simple task. Maybe a black theme could be created, but again – not a top priority.

    There are couple of other ROMs that are close to stock, e.g. Cappa’s rom and some other Russian AOSP mods like HoloDark. However, they are missing some of the added features by Lenovo.

    I’m currently updating everything to S150 and some of the nice new versions of Lenovo apps. When complete, I will move to 4.2.1 which is a pure AOSP rom, but with some nice additional features.

    Btw, I’m really tired of all these multi-language complains. People think that other authors using stock JB did a good job translating everything, but they don’t realise all these languages are from AOSP and the modders didn’t do anything, or in best case – just included them. Since there are no custom features/menus, etc. there’s nothing to translate. However Lenovo rom is English/Chinese only. I’ve added AOSP files, but the strings that are added by Lenovo have no translation in AOSP…and I only know English, Bulgarian and Russian.

    • Bill 23 November 2013 at 13:02 Permalink

      Many thanks for your comments here.

      I, personally, are extremely happy with your ROM and any problems with it are my doing (such as my initial problems with Gravity Box). The only real problem that I have had is not being able to use the Lenovo Launcher; I can see the file in the system. When I try to install an external Lenovo Launcher.apk I cannot due to a name conflict.

      I note that some users on the Giff Gaff postings are having a few problems with the latest 2.3.5a ROM (I am on the 2.3.4 which works fine).

      Just like to say thanks for all of your effect in helping out the less technically abled of us to use this great phone to its potential. As I commented above, it’s about time that Lenovo did an ROW ROM for this as they have for the A850.

  77. Job CF 19 November 2013 at 12:09 Permalink

    yes! posts by A820 users at Gifgaff and other forums suggest that Lambda ROM is the best one by far.

    • Bill 20 November 2013 at 17:15 Permalink

      I would be nice to see a ROW Rom as they have for the A850

  78. Job CF 19 November 2013 at 11:43 Permalink

    @ g99
    if you come across a better ROM for the A820, pls post details here.
    BTW. Which ROM are using?

  79. g99 19 November 2013 at 00:56 Permalink

    Hah, in the video you swiftly say that there’s the stock Android Jelly Bean launcher. Well, the home screen looks like stock Jelly Bean but the menus are gray, the icons are round, the control panel on the pulled down notification bar is still the one from Lenovo which is total crap so it’s nowhere near stock Jelly Bean… It’s still fucking Lenovo UI wrapped in half-assed Jelly Bean wrapper…

    • Mobile Network Comparison 19 November 2013 at 01:10 Permalink

      You’re right – that’s just the name the Lambda ROM installer gives it. While it’s very similar, we couldn’t actually work out how to get pure stock although it may be possible.

  80. Bill 15 November 2013 at 14:17 Permalink

    I don’t know, but if a business seller (which they are) then I assume that they would have to honour the one year guarantee. Being based in Cardiff rather than Hong Kong may help.

    • Mobile Network Comparison 18 November 2013 at 19:23 Permalink

      You’re right – you probably should be covered by the waranty (but it might be a little tough). Still, the A820 seems built very well. We can’t see any issues if you treat it well.

      Please do get back to us to let us know how you’re getting on with it in a year or so 🙂

      • Bill 19 November 2013 at 11:36 Permalink

        The A850 was bought from Cardiff and the A820 from China (DX). I am noticing that the USB connector in the A820 is now a little loose. This may be a problem in future, but I checked a few other devices around the house and their connectors also show some give, so it may not be too much of a problem.

  81. Job Chithalan 15 November 2013 at 10:38 Permalink

    Well done Bill! I bought a Lenovo A820 from a dealer based in China. Had to pay DHL shipping charges and Customs duty on top of the advertised price. So being able to buy a Chinese phone in the UK for not much higher has its adavantages. Does your UK seller offer any warranty or after sales service, in case something goes wrong with the phone?!

  82. Bill 10 November 2013 at 12:12 Permalink

    Just used InfraRed’s hack to make the phone quadband…. Not that I need it!

  83. Bill 10 November 2013 at 09:35 Permalink

    I ordered the A850 yesterday; it was cheaper from the UK than China! There is a warning on the listing not to update the system as, due to the rooting, it can cause crashes. I need to find a recovery image out there before letting my son loose with it (he is 6ft 2in at 16, so has big hands and needs something of this size!).

    Unfortunately, the launcher that I found isn’t in apk form, so I’ll have to hunt about.Even with all the updates, GravityBox doesn’t work though there are lots of options in the Xposed Installer on which GB is based.

    • Mobile Network Comparison 11 November 2013 at 00:06 Permalink

      Did you get it from Amazon or eBay? Let us know how long it takes to arrive. For the recovery image, can’t you make one using a custom recovery before you start playing around with it?

      • Bill 11 November 2013 at 10:54 Permalink

        I got it from ebay as the price on Amazon had been £150, though this has now dropped to £130 as well (the ebay ones are almost sold out now).

        I have found a Chinese recovery image on a Vietnamese site, so that’s a worst case senario! I’ll look at making one before doing anything but, given the limited amount of ROMs out there, we’ll probably stick with the phone as received which is rooted and has the Play store on there.

      • Bill 15 November 2013 at 09:11 Permalink

        The A850 has arrived and it is very impressive. Arrived rooted and in English- so far haven’t been able to find any residual Chinese stuff at all. Although somewhat larger than the A820, its curved sides make it look much less chunky. There are lots of transition effect options for the screen which is bright and clear.

        I haven’t checked out GPS yet to see if that functions correctly. Only other concern will be the SD card set up, which has been reported as a problem.

        For £130 from the UK it is excellent. The Chinese have also started dropping their prices as well, but the saving would only be about £10 so it’s hardly worth it.

        • Bill 16 November 2013 at 19:51 Permalink

          Seems that there is a slight problem with the phone in that Link2SD, which worked well with the A820, doesn’t work here. I’ve spent today trying to try alternatives so that large games (2GB+) can be accommodated. Seems that Folder Mount is the way to go, but I haven’t manged to get it to work yet. Other than that it’s very nice, especially with 4.2.

  84. Bill 9 November 2013 at 15:42 Permalink

    Let my daughter try it for BBM, but it’s too big so I have it back……

    The Gravity Box requires another programme to work (included in the ROM). I’ve set that up, but still no joy. Strangely, I reloaded the ROM in order to get the Lenovo launcher to work, but it doesn’t! It’s still the standard Android screen. I have downloaded the launcher from Slatedroid, but need to know how to install it.

    I see that the A850 can be had rooted for £130 from a good seller on ebay who is based in Cardiff. Need some good ROMs for it.

    • Mobile Network Comparison 9 November 2013 at 15:55 Permalink

      We would still be surprised if you managed to get GravityBox to work. For installing the launcher, just run the apk file on your phone. If you get the A850 be sure to let us know 🙂

      • Bill 12 November 2013 at 17:00 Permalink

        Seems that GravityBox works with the 3.4 update (from comments on NeedRom)

        • Mobile Network Comparison 12 November 2013 at 17:02 Permalink

          Was that’s pretty impressive. Let us know if you get it working.

          • Bill 12 November 2013 at 17:23 Permalink

            Actually got it working; seems that you have to tell the Framework to allow it! A few nice tweaks in there.
            OTA update to 3.4 not working, but I think it’s a problem with the name of the file which is different from that which it is looking for.

  85. Bill 8 November 2013 at 14:46 Permalink

    Yes, it doesn’t even load!

    I think that I will go back and put the Lenovo launcher on as it looks nice.

    Just playing at the moment, but it seems pretty responsive. Just need to sort out the SD partitioning/internal memory expansion.

  86. Bill 8 November 2013 at 11:34 Permalink

    PS, just noticed that GravityBox is included in the ROM.

  87. Bill 8 November 2013 at 11:26 Permalink

    OK, I finally gave up.

    The way that I did it was to load the drivers via PDANet.
    Use one-click auto-root.
    Install MobileUncle.
    Copy the recovery.img which is in your downloads above to the SD card.
    Use MobileUncle to install CWM using the image file.
    Proceed as per your instructions.

    Thanks for all the help.

  88. Bill 8 November 2013 at 07:39 Permalink

    Thanks, I’ll try that. I want to do the phone so that my daughter can check it out for BBM/Android as her contract finishes in December and this would be a cheaper option.

  89. Bill 7 November 2013 at 22:20 Permalink

    Yes, checked the Amazon option already, but I may need a few other things as well. The problem is that the drivers aren’t recognised when I try to do the update, but it also says that the MK VCOM driver isn’t there. I’ve tried PDAnet drivers and these work as indicated by the USB checking software, but I can’t get the flashtool to work. Tried a PC and laptop both on Win 7 (64 bit).

    The drivers allow me to do the “one click” routing and I have installed MobileUncle, so could use that to instal the ROM. I would prefer to do it via CWM.

    • Mobile Network Comparison 7 November 2013 at 22:24 Permalink

      Using MobileUncle as a last resort could work. But definitely try USBDview to remove all the drivers on your computer and start again from scratch.

  90. Bill 7 November 2013 at 21:06 Permalink

    There are a few ROMs for the A850, but it’s fairly new. The rooting can be done directly from the phone with some tool (Russian site, but is something that is used regularly). It costs $170 plus shipping from Etotalk. They also do rooting/ROM installation. Given the problems that I am having getting the USB drivers to function for the above tutorial, the $3 charge is probably worth it.

    I’ve tried 2 computers now for the USB driver loading and obtained the drivers from several sites. Even used PDAnet drivers. Says that it has all installed fine, but can’t get Flashtool to work.

    More head bashing!

    • Mobile Network Comparison 7 November 2013 at 21:18 Permalink

      What exactly is the issue you’re having with the Flashtool? The drivers are a bit fiddly but it’s definitely doable. Maybe try yet another PC if that’s possible?

      The A850 certainly looks interesting and it seems you can get a good price for a pre-rooted one from a UK seller on Amazon.

  91. Bill 6 November 2013 at 17:16 Permalink

    I have also purchased this phone based on the rooting/ROM installation procedure that you have given. Though I can build and sort out computers, phones are a bit of a black box to me. I’m sure that i should be able to follow this excellently presented tutorial.

    Anyway, I’m still waiting for the phone which I ordered from DealExtreme some while ago. I thought that it might be informative to your readers to let them know that China Post no longer ships anything with a lithium battery so the phones have to be sent from Singapore (which allows one Li battery in a package). As a result, shipments are taking much, much longer.

    • Mobile Network Comparison 6 November 2013 at 17:18 Permalink

      Do let us know how you get on. We came across the same problem with China Post but have always found Singapore Post to be quicker!

      • Bill 7 November 2013 at 09:15 Permalink

        Strangely enough, it was waiting for me at home yesterday. Now the fun begins.

        I just wish that DX would have put something on their website about the China Post situation which only came into effect at the end of September; I only found out about it while looking through other supplier websites.

        My son is now interested in the A850 which has far less about routing and alternative ROMs (possibly as newer).

        • Bill 7 November 2013 at 10:00 Permalink

          Daft question as well, have you checked Gravitybox with this ROM, as it is stated that it works best with a vanilla ROM?

        • Mobile Network Comparison 7 November 2013 at 11:50 Permalink

          How much does the A850 cost? We’d love to get hold of one to play around with for a few weeks. Are there any custom ROMs for it yet? It probably just needs time…

  92. Ankit 6 November 2013 at 05:44 Permalink

    Hi, I read the tutorial and followed the instructions in the tutorial video, And it worked fine for me.
    My mobile Lenovo A820 now running fine with the new English Lambda ROM with no glitches.
    Thank you team for your help!.
    God Bless You!.

  93. Don 6 November 2013 at 00:40 Permalink


  94. Don 6 November 2013 at 00:13 Permalink

    Wow – superb!

    Is Lambda an ALTERNATIVE to Android in any way – are they both ‘Operating Systems’?

    How do they compare – does Lambda have anything over Android?!

    Thanks again.

    • Mobile Network Comparison 6 November 2013 at 00:23 Permalink

      Lamba is just a custom modified version of Android. All ROMs are just different versions of Android based on the original Google versions – they can have extra features or additional apps, but they are still Android at the core. Whether you are running Lambda or CyanogenMod, your operating system is still Android.

      Lambda is reworked so that it can run on the A820. It also has several improvements such as to the camera, to the launcher and it removes the Chinese apps on the default Lenovo A820 ROM.

  95. Don 5 November 2013 at 23:15 Permalink

    I agree with the other comments – what a superbly detailed tutorial. I feel pretty confident about tackling this now, and plan to buy a Chinese-supplied A820 very soon. So many thanks 🙂

    Being new to this malarkey, there is one basic thing I do not understand, tho’! These phones typically come with Android 4.1 or so, although obviously the Chinese version. When ‘ROOTing’ the ROM using your software, what do you end up with? Is it the ‘Lambda’ OS?

    Is the UK version of Android not available for installing? How do the two compare?

    Thanks for any help 🙂

    • Mobile Network Comparison 5 November 2013 at 23:20 Permalink

      Thanks very much for your kind remarks. The ROM itself is what determines which version of Android you have. So if you get a phone with a Chinese version, you can make it into the Enlish version simply by installing an English-language ROM (version of Android). The Lambda OS ROM we suggest includes an English version of Android so you’ll be fine 🙂

  96. Gadi 4 November 2013 at 14:12 Permalink

    I’m not able to install the usb drivers when the MT65xx Preloader comes up. Are the drivers compatible with windows 7 64bit or am I missing something.

    • Mobile Network Comparison 4 November 2013 at 14:15 Permalink

      It can be a bit tricky. What exactly is the problem you are facing? It’s always a good idea to install USBDview, remove any existing drivers and reboot before starting the install process. We have got it working fine on Windows 7 64-bit though.

      • Gadi 4 November 2013 at 16:46 Permalink

        I think I have the driver installed right. It shows up as MediaTek PreLoader USB VCOM Port, but then immediately disappears with the media disconnected sound.

        • Mobile Network Comparison 4 November 2013 at 16:47 Permalink

          When it’s installed correctly it should stay there and your phone will be recognised by Odin.

          • Gadi 5 November 2013 at 06:11 Permalink

            Thank you very much for your invulable help. I figured it out. Managed to install 2.3.3 and much happier for i.

            • Mobile Network Comparison 5 November 2013 at 12:10 Permalink

              Hooray! Enjoy 🙂

              • msarang 11 November 2013 at 00:03 Permalink

                I am facing the same problem as Gadi. I am unable to install the driver. It connects but immediately disappears. Any suggestions ?

                • Mobile Network Comparison 11 November 2013 at 00:04 Permalink

                  The only thing that worked for us was to use USBDView to reset everything and remove existing drivers then try to install them again.

  97. tomaas 31 October 2013 at 20:22 Permalink

    Why don’t we need to wipe out the old data, cache?

  98. mr singh 26 October 2013 at 06:47 Permalink

    I want to subscribe on anything related to tbe a820.

  99. mr singh 26 October 2013 at 06:46 Permalink

    Hi would google calendar start working if I install this rom. It does not currently work with the etotalk rom.

    • Mobile Network Comparison 26 October 2013 at 15:05 Permalink

      In what way is it not working? Google calendar worked perfectly for us.

      • Rens 10 January 2014 at 13:03 Permalink

        I have the same problem: after installing google calendar it won’t start, just keeps saying “Unfortunately, Calendar has stopped”. I purchased the lenovo A820 with a root installation. Everything else works perfectly. Any help would be greatly appreciated.

  100. Job CF 13 October 2013 at 20:52 Permalink

    Thank you for this detailed and comprehensive tutorial. Best I have come across so far!
    Users of the A820 at GiffGaff community have also shown appreciation of your tutorial and review.

    My A820 came with ‘etotalk’ mod rom installed. It has Multi Language OS, Google Play Store, etc. They got rid off most Chinese apps but not all. Some apps like Weather. LeCalendar are in Chinese. I could not uninstall them either.

    Dialler etc are look round compared to your review photos and video. May be this could be changed, I do not know!

    Unlike in your video, stock Android launcher is not available.
    My phone do not have ‘special effect settings’.
    In the app drawer, it scrolls sideways but not up and down.

    Lamba ROM seem be more flexible and have more features.

    • Mobile Network Comparison 14 October 2013 at 13:26 Permalink

      Glad you found it useful 🙂 And thanks for helping to spread the word.

      You should be able to get the “special effect settings” just by installing Lenovo’s IdeaDesktop Home Launcher. Let us know if it works for you.

      We were really impressed with the Lambda ROM, especially its installer. It might be worth backing up your current ROM and trying it out to see whether you prefer it. We’d like to see some screenshots of your ROM though too.

      • n_ewuser 21 January 2014 at 03:16 Permalink

        Hello, MNC,

        I would like to THANK YOU many a times !!! Very good tutorial and support. I really appreciate it. Finally I was able to get rid of the annoying Chinese (nothing against Chinese – just that I don’t know Chinese language 🙁 ) apps, boot logo, boot noise, etc. etc. What a relief….. GOD BLESS YOU !!!!

        Initial driver loading – painful, though, the joy of doing this myself – priceless !! 🙂 Once again, thank you very much.

    • conlander 18 February 2014 at 20:34 Permalink

      Is it possible to do this on a mac ?

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