I've read about that "camera in use" error and no one has pinned down what causes it. Obviously, a reboot should clear it since nothing would be running on reboot.
BS, Biology for $27.00 per semester way back when!!! I took some non-matriculated courses at Columbia since my first job was associated with Columbia.
Well a reboot clears the error but it doesn't get the front camera working again... Sucks.
$27per semester????!!!! Wow. That must have been a while back lol.