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  • Title: Lenovo A820
  • Listed: September, 2013
  • Last modified: 09/20/2013 5:40 pm
  • Version: ROM Android 4.2.1

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Overall Rating : 1 Star2 Star3 Star4 Star5 Star 62


63377 total views, 6 today

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CUSTOM
Lenovo A820
Lenovo A820 - Image 1Lenovo A820 - Image 2Lenovo A820 - Image 3Lenovo A820 - Image 4Lenovo A820 - Image 5

Author adMember Info


DESCRIPTION


Update 15.01.2014

Fixed color temperature bug (please see #2).

 

Alpha version

Port from ZTE V987. Thanks to bruno for the base. Also thank to cloudROM and MIUI teams, their roms helped me for the final fixes. Unfortunately, it is still based on S139 kernel. I couldn't find a way to overcome the issue with messed up touchscreen and orientation. It was working on my phone only.

Don't forget this is just a test version for those who like to experiment. It would be a big luck if everything works as intended, so if you're looking for a bug-free and stable rom, then it's adviseable not to install this version before bugs are fixed.

Install through CWM/TWRP.

Needless to say – make a backup of your current system first.

Spent a lot of nights working on this and finally managed to fix everything…or almost.

Most of the things seem to work, but needs testing. It is guaranteed that won't mess up the touchscreen (verified on another A820).

The ROM is permanently rooted and multilanguage, gapps not included, but you can install from this link: http://goo.im/devs/UniqueDroid/gapps/gapps-4.2.1/gapps-jb-4.2.1-20121129-signed.zip through CWM/TWRP.

 

If you get installation aborted, then you don't have a proper recovery installed. Download this one http://d-h.st/QxB rename it to recovery.img, copy to sdcard and install through MobileUncleTools (you can download it from Google Play).

 

Working: GPS, Wi-Fi, Sensors, GSM module, camera, audio, video with h/w decoding, mount points, charging

Untested: Bluetooth (turns on, but have no device to test it with), FM radio tested, but needs headphones as antenna

Not working / known bugs:

1. MP3, but plays FLAC – replace libstagefright.so from this link http://d-h.st/Zn6 in /system/lib/, set rw-r–r– permissions and restart the phone.

2. Color temperature changing in some cases - Replace /system/app/Gallery2.apk with attached Gallery2.apk rom the zip file and delete Gallery2.odex. Reboot the phone. Playing the recorded videos directly from the Camera leads to FC, but otherwise everything seems fine. This version is unaltered in any way, but fixes the nasty color temperature bug. FC problem will be fixed in the next full release.

3. USB Tethering – disable USB Debugging from Developer options and it will work

4. Contacts binding (don't have 2 SIM cards, so unable to test)

5. Search in contacts stops at 2nd symbol



※Please make a backup of your device before installing or updating ROM

Responses to “Lenovo A820”

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  1. 09/24/2013
    Unknown

     

    adambik on 11/25/2013 @ 4:33 pm

    Infrared, I'm just curious if you found a way to make  WiFi hot-spot working? I've tested all posted 4.2.* ROMs for A820 and this with the few fixes decribed here is the best one with really great battery life. It would be great if you have a tip such as for MP3 :)

    • 04/06/2013
      Bulgaria

       

      infrared on 11/27/2013 @ 3:53 am Author ad

      No, I can't help with WiFi hotspot. Maybe if I get a good ata plan, then I can test it properly.

      This project is on hold, but I will get back to it during the Christmas holiday. Will have some free time.

    • 05/26/2013
      France

       

      wolfgangt on 11/27/2013 @ 11:36 pm

      infrared, why not go directly to kitkat ?

  2. 04/12/2013
    Sweden

     

    popper on 11/28/2013 @ 5:05 pm

    There is a kitkat rom for TENGDA X920. Posible to port to A820 Infrared?

  3. 12/11/2013
    Russia

     

    shzaur on 12/11/2013 @ 4:48 pm

    BEST ROM. MAY I DONATE YOU :-D

  4. 12/11/2013
    Russia

     

    shzaur on 12/21/2013 @ 6:34 pm

    How about GPS?

  5. 12/23/2013
    Finland

     

    beaver on 12/30/2013 @ 7:33 pm

    This Rom is very good. Only wifi tether does not work. I would choose this as my std Rpm if only … 

  6. 01/28/2014
    Australia

     

    aus9 on 01/30/2014 @ 11:01 am

    Hi

    the link on first page to recovery image claims file no longer there

    http://d-h.st/QxB

    Any chance you can upload to a new site/link?

    I ask because I have A820 S139 and my attempt to system update to S150 thru OTA is a fail…..so I suspect I too might get an aborted message unless I have the recovery image

    Thanks for reading

  7. 05/26/2013
    France

     

    wolfgangt on 02/03/2014 @ 8:04 pm

    Infrared, mastersanta´s 4.2.1 runs really smooth (you had a look at it). Why not abandon this one and try a KitKat ?? You are the one for that.

     

    Best Regards

    Wolfgang

     

    • 04/06/2013
      Bulgaria

       

      infrared on 03/09/2014 @ 2:02 pm Author ad

      KK is not going to happen until someone releases a MTK phone with 4.4.

      Lenovo is going to do that, Huawei too. They are targeting newer MTK chipsets, but I guess it should be possible to port it for 6589. Haven't really inspected a 6592 firmware.

    • 05/26/2013
      France

       

      wolfgangt on 03/09/2014 @ 5:39 pm

      Thank you for your response, infrared. Concerning 4.2.1, I guess the wheel needs not to be invented several times.

  8. 04/06/2013
    Bulgaria

     

    infrared on 03/09/2014 @ 5:59 pm Author ad

    Yes, but I'm doing it for myself, so when it's ready I could upload it.

    It will be a simple installer with as few apps as possible. Aroma installer brings too many variables in the equation and it's harder to maintain, especially with updates. Plus the pure AOSP rom does not need too much modifications. In fact it is almost ready and pretty stable, but haven't changed much in the code yet. Nevertheless I have a very good base now and no need to fix Lenovo bugs…

    • 05/26/2013
      France

       

      wolfgangt on 03/10/2014 @ 10:24 pm

      infrared, it is your time, do as it pleases you. Btw., did you ever have a thought about steganography for android ? I emailed you about that some time ago. If you have time to kill ….

      And I have to praise you again for the way that you deal with your "customers".

      Best Regards

      Wolfgang

       

    • 04/06/2013
      Bulgaria

       

      infrared on 04/12/2014 @ 8:05 pm Author ad

      I don't have time for this and it's not in my field of interest :/

      Sorry for the late answer, I just saw that comment.

  9. 03/31/2014
    Unknown

     

    IvanM on 07/23/2014 @ 6:18 pm

    Can I put this rom in Lenovo A820c? I cant  find anything else for A820c!

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