How To Update Samsung Galaxy Grand Duos I9082 with CM12 Android 5.0.2 Lollipop


The latest Android 5.0.2 Lollipop has been rolled out for many Samsung devices recently along with LG, HTC and Nexus. The Galaxy Grand Duos I9082 is a lower mid-range device launched in 2012 and comes with 1GB RAM, dual-core 1.2 GHz processor, 5-inch TFT LCD display with 480×800 pixel resolution and 8MP camera running on Android 4.2.2 Jelly Bean. If you owned Samsung Galaxy Grand Duos I9082 then the good news is that the unofficial CM12 based Android 5.0.2 Lollipop is now available to download and install on your phone but you may know that the Android 5.0.2 Lollipop official update isn’t currently available for Galaxy Grand (I9082/I9082L).


This ROM is developed and provided by xda-developers (pawitp), not by the CM team, so this is not the Nightly build of CM 12 Android 5.0.2 Lollipop OS. Developers are still working to fix the minor issues in this under development ROM but this CM12 ROM has been tested by many users and it works without problems on Samsung Galaxy Grand devices, according to the developers. It can be used as a daily driver because it is stable having no major bugs. CM12 is a custom ROM which is not officially released, so it can be installed on the Galaxy Grand manually. If you want to update Galaxy Grand Duos I9082 then follow the given tutorial.


The CM12 Custom ROM in this guide is only applicable to the Samsung Galaxy Grand I9082/I9082L. Flashing this firmware on any other variant might brick your device. Verify the model number of your device before proceeding.


Flashing a custom ROM on your Samsung Galaxy Grand will void its warranty. will not be responsible for any damage occurred to your device before or after this firmware installation. Proceed at your own risk.

Before Getting Started:

  • All the will be wiped out on your Galaxy Grand Duos while installing CM12 custom ROM. Take a proper backup of your important data from the internal storage memory of your smartphone.
  • Your Galaxy Grand must be rooted.
  • A custom recovery , like CMW or TWRP recovery should be installed on the phone.
  • Windows-Based PC will be required to install CM12 manually.
  • Enabled USB debugging option by navigating to “Menu – Settings – Developer Options”.
  • Deactivate Antivirus if installed.
  • Make sure to charge your phone at least 70% before starting the installation process. If your device might get powered off during the installation, it might get bricked.

Required Files:

Steps to Update Galaxy Grand (I9082/I9082L) with CM12 Android 5.0.2 Lollipop:

Step No 1:- First, connect your Galaxy Grand with the PC using its USB data cable.

Step No 2:- Copy the downloaded CM12 Android 5.0.2 Lollipop update file and Google Apps package to the Galaxy Grand.

Step No 3:- Disconnect your phone after copying files into it.

Step No 4:- Turn Off your Galaxy Grand in order to boot it into Recovery Mode.

Step No 5:- Now turn your device on by pressing and holding Volume Up + Home + Power buttons at the same time until recovery mode is being displayed.

Step No 6:- After entering into Recovery Mode, select “wipe data factory reset” and “wipe cache partition”.

Step No 7:- Also, select “Advanced” and choose “wipe dalvik cache”.

Step No 8:- Navigate to the main Recovery Menu and choose “install zip from SD card” followed by “choose zip from SD card”.

Step No 9:- Find and select the the CM12 Android 5.0.2 Lollipop firmware .zip file that you’ve already copied to your device. Proceed the installation process on your Galaxy Grand.

Step No 10:- Install Google Apps Package on your device by repeating the above steps.

Step No 11:- Reboot your device now by going to main Recovery Menu again and select “reboot system now”.

Done! You’ve installed CM12 Android 5.0.2 Lollipop custom ROM on your Samsung Galaxy Grand 2 successfully.

Share your experience with us or if you have any query or problem while updating your Galaxy Grand, don’t hesitate and use the comments area below.



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18 Responses

  1. Nitesh Kumar says:

    Sir I have updated my gt i9082 to the lollipop 5.0 but sir my appolo music is not working,my handset is hanging many times and camera is not zooming sir plz help me to solve these problems

    • Deepak says:

      dude this is not good better restore your device and carry on with the premiumness that you have paid for

  2. Sudheer says:

    @Nitesh Kumar: install this ROM it is working fine i installed today only. Music app, Camera, and youtube freezing bugs are fixed

  3. yogesh says:

    Hi this is yogesh
    I have samsung galaxy grand i9082 with ARMv7 processor
    Can i install this ROM in my phone….becoz you mentioned duel core 1.2 Ghz proccessor
    plz reply

  4. kshirodra says:

    I m using rooted samsung galaxy s duos2 . Can i install it.. plz reply sir
    My email id is [email protected]

  5. daniel says:

    giving this signature error how do I get around?

  6. David says:

    Google play services, hangout and youtube services keep stopping and its very frustrating. Please help!!!

  7. veer says:

    When I open the CM12 link to download zip file.Its shows many zip files by seeing all I am confused which file select to download.
    Please help me to choose proper file.

  8. Rahul says:

    my grand duos gti9082 do not root in clockwork mode option
    than i will restart phone
    Volume up+home button+power button
    error is no command

    pls help me

  9. gti9082 user moh says:

    I download cm 12 android 5.02 lollipop it is so cool … but still there are some bugs… camera stops when using flash in cam mode or video mode it freeze cam app … using flash light in notification bar sometimes reboot phone … whatsapp is not working …. I am not a developer but I think flash command make this bugs … please replay …

  10. Kunjal says:

    Guys its really working and amazing.
    Just make sure to use these two files only-

    Thanks AndroidXDA

  11. Kunjal says:

    Sory Guys the name of google apps file is-

    dont use
    this is not working

    so now use these two files-


  12. Deepak says:

    after reading all these comments I prefer the viewers not to root their devices please even I had rooted my device and gone for this unofficial update but it not works, now I had restored my device like previously it is and not in mood of doing such crab…… also I conclude Samsung have made a premium device and its premiumness is worth more then any update, you all know it better as u hv paid for it… don’t root your device rooting is holycrab sorry!!!!

  13. user says:

    Dont ever root ur galaxy grand … my case i lost my iemi code and finally ive 2 pay 1500 to service center

  14. Bino says:

    Im getting an ‘unfortunately app has stopped’ error for all the apps. infact I couldnt go to the home screen, its in an infinite loop it seems. Please help

  15. nav says:

    sir i m not able to clear cache partition of my phone
    it shows error nd then reboots automatically
    plz help sir plz

  16. UMESH TAMBE says:

    Which of the 79 CM12 Android 5.0.2 & 22 GAPPS files to be downloaded ?

  17. Kumar Vaibhav says:

    For Gapps problem, install from

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