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    AC Question
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    Default Samsung Galaxy S111 sgh-t999 no lcd during phone call only

    I recently replaced a front glass on the phone with the battery and sim card out only. I left the motherboard in tact. What happened? Did the blow dryer ruin the motherboard. I've done this before and have had no problems. Please help
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    Default Re: Samsung Galaxy S111 sgh-t999 no lcd during phone call only

    Welcome to Android Central! What exactly is the problem? Does the screen black out during a phone call only? That sounds like normal operation, assuming the phone is up against your ear--that's what the proximity sensor does. If it blacks out even if the phone is not against your ear, then the proximity sensor is probably malfunctioning.

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