hi guys,

i have this USA version of Garmin 1350. it just refused to boot and get stuck at Garmin logo and you know it...

but i try to go into pre-boot mode to cure/format/update. it just drives me crazy.

i follow the instruction below. installed garmin usb drivers. It just boot into pre-boot, my pc found it fine. Webupdater found it but with some weird marking. but then, within 20secs. it just gone! and i cant get it flash or format in such short time. within this 20secs, my Win7 x64 detected garmin usb but cant see a removable storage.

1. Power OFF your Nuvi.
2. Press and keep holding the most left upper corner of the LCD screen
3. Power ON your Nuvi but DON NOT release your finger either from Power button nor from LCD screen (keep both pressed until the procedure ends)
4. You will notice Nuvi boots in Pre-Boot mode. Now quickly connect your USB cable.

Anyone have have idea?