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Garmin 810 stuck on diagnostic screen

As many others I am also finding my Garmin 810 stuck on the diagnostic screen. I have pursued the advise provided by other users. The start/stop button is NOT stuck. When I try to reset to factory settings, the screen still defaults to the diagnostic screen. Any ideas? Thanks.

  • Hello,
    I have the same problem. I managed to start the device a few times when it was plugged into the computer via USB. But it is no longer recognized as a removable disk. The device is almost exactly 5 years old. The USB socket is like new and the device itself works perfectly. Is there a programmed expiry date built in here? Hard reset did not help either. I am really angry.