Help needed for Garmin 810 going into diagnostic mode

cheerspal

Have tried the following after contacting Garmin.

They want £78 to give me a fixed replacement so was wondering has anyone else has a problem where the device when it just boots into diagnostic mode.



THIS MUST ONLY BE PERFORMED ON A WINDOWS COMPUTER, NOT ON A MAC.

Before formatting the device, it will be necessary to remove any SD cards and save the basemap from the device to the computer:

Remove microSD card from device
Plug device into the computer
Open device as a drive
Open Garmin folder
Drag gmapbmap.img file to desktop
Once the basemap has been saved, the device can be formatted:

Right-click on device as it appears as a drive
Select Format...
Ensure File System is set to FAT32
Ensure Volume Label is set to Garmin
Uncheck Quick Format
Select Start
The formatting process will take several minutes to complete. Once it has finished, the basemap will need to be added back to the device:

If needed, create "Garmin" folder within Garmin drive
Drag gmapbmap.img file from desktop to "Garmin" folder
Remove device from the computer and power off
Press and hold Mode and Power
This process will remove any corrupt memory files.

aindriu80

Im having the same problem, today my garmin 810 jumped into the diagnostic mode and I don't know why ? I'm trying to get it to stop.