Rispondi a "iPhone 4 proximity sensor not working after replacing BLACK GSM"Hello a few days ago I changed a flex cable because of the power button I also transferred the uv filter from the old cable/sensor to the new but it doesn't work the sensor is ok ( when I hold a cam on the phone while it is calling some number I can see the blue shine of the sensor) The sensor next to the uv sensor has it also any filter?? Would a new filter be a solution to this problem??? I didn't try the tape or marker method , should I? Would a iPhone 4s filter wok on 4 ??? Thank's to all of you guys!!!