With the release of Android 4.4 KitKat, developers started working on different custom ROM based on this Android version. It is also rumoured that, Samsung is testing Android 4.4 KitKat on older devices like Galaxy S2, S Advance, Grand Duos etc. Of course it will take few months as Samsung will release this update for flagship devices first.
But unofficially Cyanogenmod 11 custom ROM based on Android 4.4 KitKat is already compiled for Grand Duos. Android 4.4 KitKat come with whole lot of changes in its UI. Some of them are new widget interface, Google Now, new keyboard, camera app, dialer app etc. All this features are included in this ROM.
Since the ROM is in alpha state, you may come across few bugs some of them are mentioned below.
- Only the primary SIM slot works
- screenrecord does not work
- FM Radio does not work
- No anti-banding setting in Camera
- Stock browser does not use hardware acceleration (Please use Google Chrome)
- Small artifact in Camera UI
- Does not work on 4.1 stock ROM’s bootloader, please upgrade to 4.2 before flashing
Cyanogenmod does not support dual sim, so don’t expect that future build will support it. Just execute few simple steps written ahead to install android 4.4 KitKat via Cyanogenmod 11 on Samsung Galaxy Grand duos.
Procedure mentioned below for flashing the custom ROM, is risky and may cause damage to your device. Newbies should take precautions while flashing the custom ROM. Carefully read the article first and execute the steps. If anything goes wrong with your mobile, we or developers are not responsible for it.
This custom ROM is compiled only for Samsung Galaxy Grand Duos with model number I9082. Don’t even think of flashing it on any other device else you will end up with bricked device. Check model number as
Settings -> about device -> model number
Note: Flashing any custom ROM violates the warranty. So think before flashing it.
- First of all check that mobile battery power is not below 70%. If it is then charge it first before proceeding ahead.
- Take a backup of important stuff on mobile (more precisely internal memory) like SMS, MMS, contacts etc. to the external memory card.
- How to Backup Android Contacts and Text Messages (SMS / MMS).
- How to Backup Call logs, APNs and EFS folder from your Android Device.
- Most important! Your mobile must be running on Android 4.2 Jelly Bean or above. Follow this article to upgrade Grand Duos to Android 4.2.2.
- Custom recovery like clockworkmod recovery is essential for flashing custom ROM. Do not try to flash it through stock one. Follow this article to flash clockworkmod recovery.
- Download latest build of Cyanogenmod 11 for Galaxy Grand Duos from official development page.
- CM11 for Galaxy Grand Duos.
- Cyanogenmod doesn’t include Google apps. So you need to download and flash this Gappas package separately.
- Gapps for Android 4.4. KitKat.
- After downloading both these files, connect mobile to PC through USB cable and copy both files to the external memory card.
- Disconnect mobile from PC. Switch off the device and boot into recovery mode by pressing volume up + home + power button simultaneously.
- Make a nandroid backup of the system. It will be helpful in future if anything goes wrong in the process. Refer this article to take nandroid backup.
- Select wipe data/factory reset and wipe cache partitions afterwards. This will clear all the data from internal memory.
- Next select install zip from sdcard followed by choose zip from sdcard. Select cm-11-20131210-UNOFFICIAL-i9082.zip for installation.
- It will take few minutes for installation.
- In order to avoid bootloops, do wipe data/factory reset and then wipe cache partition again after flashing the ROM.
- Repeat step of install zip from sdcard followed by chose zip from sdcard for Gapps.
- After successfully flashing both the files, select +++++go back+++++ and then reboot system now. Remember first boot take more time than usual.
Well done! You have successfully installed Android 4.4 KitKat via Cyanogenod 11 on Samsung Galaxy Grand Duos. Let us know how it is working for you. If you came across any doubts or difficulties, report us in the comments section. We are always ready to help you.
Tip: In case you want to revert to previous ROM you can easily do it just by entering into Recovery mode. Then select the Backup and Restore option from the recovery mode. Then select restore option & choose your latest backup to restore. Even you can flash official firmware.