Thanks a lot for your prompt response. I installed the software and followed all the instructions and formatted the drive. I copied my backup to the formatted drive. Unfortunately the problem is remains and I can get into mass storage mode after the battery is completely discharged. Otherwise, the gps refuses to boot and is stuck on the garmin logo.
Pre-boot is a lost cause even after I followed your instruction about pressing (and holding) the top left and power button.
Any ideas of what to do next?
Thanks
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