One of the most popular custom ROMs across various Android smartphones is the Android Revolution HD ROM. You can view the instructions from the XDA thread of the ROM that you want to install. Make sure you follow the developer specific instructions properly.You can also read our list on the ten best backup apps for Android. In order to create a backup, you can use your Note 2’s backup feature or an app from the Google Play Store. Charge your Galaxy Note 2 at least 70%.Before proceeding with the installation process, make sure that you follow these tips. Rooting and installing custom ROMs will void your warranty.