I would like to know this also. Front facing camera no longer works. When switch button pressed it just cycles back to the rear facing camera even though it adjusts settings like it has switched from one to the other.
Randomly (although seldomly) goes back to working fine for a few times using camera but then goes back to same problem.
Have cleared cache & data several times as suggested in another forum with no luck. This also affects other camera apps & will not let them select the front camera either. Frustrating... Please help !