Backup

1. Set Android into "developer" mode
   • Tap the "Build number" 7 times
   • Settings -> About phone -> Software information -> Build number
2. Turn on USB debugging
   • Settings -> Developer options -> USB debugging (in dialog click "Allow")
3. On computer, install adb
   • dnf install adb
4. Connect Android to computer
   • In dialog click "Allow" to allow the USB connection to computer
5. Check from computer that the Android is connected
   • adb devices
6. Backup the FreeOTP info to a file on the computer
   • adb backup -f android-org.fedorahosted.freeotp.adb /path/to/backup/file

Restore

1. Restore the FreeOTP info
   • adb restore /path/to/backup/file