Quote Originally Posted by Loveboy View Post
I told my friend to install this app and test the camera.

He told me that it still doesn't work.
I'm by no means a cellphone technician but do you hear a clicking sound coming off the camera? If so, that could mean the lens got stuck and the camera fails to initialize the autofocus and won't work. Was a known problem with many iPhone 4s, so maybe also a known culprit to other devices.