maintain archives of system files (backups from 2013 or 2021) that can be manually copied to the device's internal storage via a PC connection. Master Reset (Troubleshooting): If the device fails to boot, perform a Master Reset : Power off the device, then hold the bottom right corner
Not officially. Garmin prevents downgrading GPS chipset firmware due to WNRO and patent licensing. If you have issues after 6953, perform a master reset (Settings > System > Reset > Delete All User Data). garmin 10r-04 6953 update