Had front card corruption yesterday morning when I turned on the car.
Had issues resolving the issue, but found/remembered a workaround that I used before but forgot because card corruption didn't happen for like 1-2 months before yesterday.
I am unable to format the card inside the dashcam once the card not found appears, I click YES format Front Card, but nothing happens.
I put the card in my android phone, phone says it's damaged, I format it, everything is good, I put it into the dashcam and it still says card not found, even though the phone sees it and put files on it.
(Note: I power cycled the dashcam to make sure the formatting doesn't have a weird bug, also power cycled with and without card installed and tried formatting)
To fix it, I put the front card into the rear card slot, and format it inside the dashcam, for some reason swapping card slots and formatting it in the rear actually works. The card gets formatted and can be used again for recording. Card has been working fine ever since, UNTIL NEXT TIME.