yesterday i was happy to fine a new system update for my Galaxy S20 + but after downloading it my micro SD card started dismounting and i had to restart to get it back. After restarting it would stay for one or two hours than disappear again. i removed it and put it back in but the same issue. and it kept getting worse till now it totally disappeared even after restarting not coming back. FYI it is encrypted and has all photos and recordings.