| http://www.w3.org/ns/prov#value | - When you replace the front LCD Digitizer Screen of iphone 4 or 4S,there is a slight chance you may have dislodged or removed a very small plastic cover and/or a square piece of foam lining over the sensor.The two small stuff are very important to the function of the proximity sensor.Here are 2 effective solutions to solve the issue of iPhone 4 4S proximity sensor does not work.
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