Chosen Solution
My iPhone has stopped working. I cant turn it on, but is recognized in iTunes. I have Tried Holding the Lock & Home button together to reset, to not avail. Nothing is showing on the screen. its not vibrating either so its not the screen. HELP!! I DON’T HAVE AND WARRANTY LEFT AND NEED THIS FIXED THANKS IN ADVANCE FOR ANY INPUT
If the phone is still receiving messages/calls etc and is turned on then you need to check the lcd connection and replace if necessary
If nothing is showing on the screen, the screen may be damaged, or the LCD flex cable has come loose from the logic board. The first step I would try is to disconnect the battery for a few seconds and then reconnect it.
After checking all the flex cables to be fully seated and make good connection I would try to put on a new screen assembly and see if that fix the problem.
i think it is in recovery mode..