I have an lg optimus exceed my touch screen just randomly stopped responding , i ca use my lock button and the volume key on the sides, i can get calls and texts i just cant answer respond or do anything at that matter considering the touch screen is not responding, i have powered it off and on nothing works
SOURCE: my lg encore touch screen
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SOURCE: LG ENV TOUCH IS FROZEN. WON'T POWER DOWN, TRIED
You should try taking out the battery for at least ten minutes then putting it back in.
SOURCE: LG CU920 VU Touch Screen Not Responding
I had the same issue and was pissed, not to mention i didn't have a warranty and it was only a couple months old. I actually bought another phone and because I had nothing to lose, took my phone apart and replaced the touchscreen myself for about $30. If you have ever changed out a PC part, you could replace this screen. It's not really that difficult and there are guides out there. The screen itself is just a thin piece of plastic that lays over the lcd screen and is kinda "glued" into the frame of the phone. If you look at ur phone and follow the frame around, that's the piece ur replacing - but you have to disconnect all the wires from the inside. Now mines works like a charm -- and I'm stuck with two phones :~( PS: STOP USING THE STYLUS!
SOURCE: LG KM900 Screen goes black when it rings and can
If you have a screen protector on, the proximity sensor is covered by the screen protector. The sensor is locate on top left of the screen next to the inner camera. Cut of the piece of screen protector and it should solve the problem.
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