So, I have a 13-inch MacBookPro M1 that just started showing this problem. Big Sur 11.2.3 installed.
The USB flash drive will no longer auto mount. It loaded once, I could see the files, clicked on a file and the computer ejected the external drive. I cannot see any external drive, tried rebooting, disk utility without any success. The drive was created not long ago prior to Big Sur. I have critical files and think is related to what you all have posted. I cannot reformat drive. Need help, any other suggestions?
DavidOGT
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
From
Ogunquit, ME, United States