Alright so a while ago my front camera stopped working after I did a front screen replacement. I was told it was a software problem. I literally just updated my phone from 4.3.3 to 5.0 and my camera still doesn't work.

So basically what happens is when i tap the camera app it launches but the camera shutter doesn't open at all and the little switch between camera and video mode is sporadically turning black and gray. on and off really quick. You can change modes and all but you cannot get any signal from the front camera. I took the back off and checked the camera but IT APPEARED nothing was wrong.

WHAT DO I DO?!?

Thank you in advance for any suggestions =)