So I've just recently done the update on my S21+ and when opening my camera this is black, even on video and won't let me take picture.
On other apps such as snap chat, insta ect it still won't let me the a picture.
I've tried clearing the cache, turned phone on and off, reset, safe mode off and used *#0*# and the front camera works but not the rear.
Finally decided to factory reset the phone and still no joy.
There is no damage to the phone and was working fine before the update.
Would appreciate if anyone has any ideas.