Seeing it takes a flash to region 14 to update the main firmware it seems that there's no corruption in that part of the flash memory at least.
Provided the Rufus format actually leaves the visible memory genuinely empty, I suggest you try this: Set your computer to show all hidden and system files, [Only registered and activated users can see links. ]....
Just tried that - boots normally but no files created in the Garmin folder.
Last edited by Boki; 31st October 2020 at 11:42 AM.
Reason: quote shortened
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