It’s good to hear from Android developers when they bring Marshmallow to old devices. Today in this tutorial we have got Android Marshmallow for Samsung Galaxy Note Pro 12.2 LTE SM-P905. This is unofficial custom ROM released by the one of the best Android developers CyanogenMod by the name of

This is unofficial, but it has all the features of the official Android Marshmallow and its AOSP. So, to flash this ROM on your device you need to first root it and install any custom recovery of your choice but TWRP is recommended as it is best so far. Also make sure that once you root your device, it’s warranty will void.

So, if you own this Samsung Galaxy Note Pro 12.2 LTE SM-P905 and ready to taste the flavor of Android Marshmallow on your device then you are at right place. Here we have simple procedure and some early preparations for your comfort, so that nothing goes wrong during the procedure. Make sure you will be the sole responsible if anything goes wrong during or after the process.

Preparing Your Phone

  • These instructions are strictly limited to Samsung Galaxy Note Pro 12.2 LTE SM-P905 model of the device, if you try it on another device then you may brick your device.
  • The Device should be fully charged to avoid interruption in the process.
  • Back up all the data and also make a Nandroid backup of the current ROM.
  • Install USB drivers of the device on your PC.
  • The Device should be rooted and it’s boot-loader must be unlocked.
  • Custom recovery like CWM or TWRP must be installed on your device.
  • Enable USB debugging mode on your device. Go to Settings > Developer options > USB debugging mode.USB Debugging

Install Android Marshmallow CM13 Unofficial Custom ROM

  1. Download Android Marshmallow based CM13 unofficial custom ROM file from here.
  2. Download Android Marshmallow Google app’s from here.
  3. Connect the device to PC and transfer both files to device internal storage.
  4. Disconnect the device, and switch it off.
  5. Reboot the device into Recovery mode, press and hold the Volume Down and Power key for few a seconds.
  6. While in recovery tap on Wipe options and select all the options available.
  7. Return to main menu and tap on Install option and navigate to the ROM file stored on your device.
  8. Select the file and flash it by using Swipe to wipe button.
  9. In the same way flash the Google App’s file.
  10. Return to main menu and tap on Reboot to reboot the device into normal mode.

That’s all you can now check the Android version in Settings > About device > Android version.