How to back up your Android phone
After that, all the content backed up to your Google account should appear on the main screen for viewing. Once you’re in TWRP, it’s a good idea to take a snapshot of your entire system (previously known as «nandroid backup») before proceeding further. This can be useful in case you end up with a failed installation. You’ll be able to boot into TWRP and restore the backup to go…
