You are not considered an avid Android fan unless you know about CM custom ROM. CyanogenMod is one the most successful and buttersmooth Custom ROM ever existed. Now a days one of the most active builds based on Android Lollipop 5.0 is CyanogenMod 12. The CM 12 Mod is released for alot of devices in recent past and now the owners of Samsung Galaxy Grand Duos can also update CyanoganMod 12 on their devices. Courtesy XDA Developer pawitp this awesome Mod is available for I9082/I9082L users. Before going any further keep couple of things in mind – This is an un-official release and the developer mentioned clearly that please don’t post any bugs on CyanogenMod issue tracker.
So, without any further delay lets dig in the guide on How to update CyanogenMod 12 on Samsung Galaxy Grand Duos I9082/I9082L.
The methods involved in flashing custom recoveries, roms and rooting your phone are highly custom and may result in bricking your device, and has nothing to do with Google or the device manufacturer that is SAMSUNG in our case. Also rooting your device will void its warranty and you will be no longer eligible for any kind of free device services by the manufacturers/warranty providers. In case of any mishap we may not be held responsible. Follow these instructions to the letter to avoid any mishap or bricking. Make sure that whatever you do, you are doing it at your own responsibility.
This will only work on I9082/I9082L. So, if you don’t have afore mentioned models please don’t try.
Ofcourse battery should be charged to at least 60%. (We recommend 80% though).
Install CWM/PhilZ Touch Recovery or TWRP on your device. And make sure your device is rooted.
Backup SMS, Call Logs, Contacts, Media and EFS.
Install CyanogenMod 12 on Samsung Galaxy Grand Duos:
Connect your device with PC.
Copy and paste downloaded CM 12.0 to root of your sdcard.
Disconnect the USB cable and turn off your device.
Turn on your device in recovery mode. Press and hold the Volume Up + Home + Power to boot into recovery mode..
Now if you are using CWM/PhilZ Touch Recovery follow below steps:
Backup your ROM using the recovery software.
To make a backup navigate to Back-up and Restore and on the next screen select Back-up option again.
Once the Back-up is created successfully, go back to the main screen and navigate to “advance” and choose ‘Wipe Dalvik Cache’ to avoid bootloop.
Select Wipe Data/Factory Reset to reset your device to factory settings.
After the reset Navigate to ‘Install zip from sd card’ .
Select ‘choose zip from sd card’.
And select the CM 12.zip file.
Select Go Back once the installation is successfully completed.
If you are using TWRP follow below steps:
Click On Back-Up and Select System and Data.
Swipe the slider.
Tap on Wipe and select Data >> System >> Cache.
Again Swipe the confirmation slider.
Hop back to Main Menu and tap install button.
Locate CM 12.zip and Gapps and Swipe the Slider To install it.
Once the installation is completed Reboot the device.
As this is an Alpha stage so alow builds will be releasing in coming days, if you are upgrading to the newer build you just need to flash the zip file. No need for data wipe or flashing Google Apps again.