Galaxy Note 4 can now be updated to Android 6.0 Marshmallow via newly released CyanogenMod 13 (CM13) ROM from the industrious Cyanogenmod team. The CM13 ROM can be flashed using custom recovery tool like TWRP. You can also flash the Google Apps or Gapps, after installing the developer created blobs.
As the ROM is still under development, it may harbour a few untested bugs or broken features which will be fixed with the forthcoming updates in the future. Users are advised to flash the COI3 bootloader and modem, before installing the ROM. Failing to do so, may lead to bricking or permanently damaging your device as this is a prerequisite to run the ROM.
Apart from the NFC, fingerprint scanner, and battery drain issues, all the basic features are reportedly working fine with the CM13 ROM for Galaxy Note 4. IBTimes UK will not be held reposnibile for any damage to device during or after the ROM installation. Users are advised to proceed at their own risk.
- The CM13 ROM is supported only on the Galaxy Note 4. Do not attempt this procedure on any other device or model.
- Ensure TWRP recovery is installed and bootloader is unlocked on the device.
- Verify that the correct USB drivers are installed on the computer to enable transfer of ROM and Gapps to the device's internal storage.
- The device must have at least 80% battery charge before you begin installing the firmware. This is to prevent unexpected device shutdown during the process.
- Back up your important data and settings on the device to prevent accidental data loss during the firmware installation.
Update Galaxy Note 4 to Android 6.0 Marshmallow via CM13 ROM
- Download Android 6.0 Marshmallow ROM from the download link provided.
- Copy the ROM zip file to a safe location on your device's internal storage.
- Reboot the phone into TWRP Recovery: Turn off your device and then press and hold the Volume Down and Power keys at the same time. Wait until the TWRP logo appears, which indicates you have successfully booted into the recovery.
- Perform a nandroid backup as follows: Tap on backup option in TWRP and select all the partitions including System, Data, Boot, Recovery, EFS and swipe right to begin the backup process.
- Once the backup is done, perform a full wipe. Go to the TWRP main menu and hit the wipe button. Then select Advanced Wipe. Finally, choose Dalvik Cache, System, Data, and Cache. Now swipe the confirmation button to begin the wipe process.
- Return to the TWRP main menu or home screen and tap on the install option. Navigate to the ROM file and select it.
- Swipe the confirmation button to proceed with the installation and the ROM will be installed.
- Go back to the home screen in the TWRP and tap on the install option. Browse and select the Blobs file and Google apps zip file and flash simultaneously.
- Swipe the confirmation button to proceed with the installation.
- Once the installation completes, reboot to system.
If the new boot logo appears on screen, it means you have successfully installed the ROM on your device. If you face any boot loop or system errors, perform a factory reset from the recovery or restore your previous ROM from the backup.
[Source: Droid Views]