Hello dasilvarsa,

no luck at all: I flashed the 775T with Garmincure3 in cure mode successfully, then formatted it with RMPrepUSB also successfully, rebooted it and stuck now in „SYSTEM SOFTWARE MISSING“. Windows and RMPrepUSB don’t recognize it anymore.
One comfort: I can get in pre-boot mode and Garmin-updater recognize the 775T. Is there a way to get it back to mass storage mode?