Iphone 4 proximity sensor problem

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		GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone, iPad, iPod Hardware Repair
Iphone 4 proximity sensor problem

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12-09-2014, 16:47	#1 (permalink)
fulmicotone1 Insane Poster Join Date: Jan 2014 Posts: 72 Member: 2098114 Status: Offline Thanks Meter: 5	Iphone 4 proximity sensor problem I've iphone 4 water damaged and i recovered it and all work but not proximity sensor..i've restored phone and i've used 3 different proximity sensor flex but still not work, i've also tryed to reduce light with black tape,i've resolder all pin of connector with flux but nothingh, so then i opened schematich and tested all components drive current to connector J7 and are all ok and i found Phone power on pin 1,3 1,8v pin 10,12 3v pin 8 1,8v pin 6 1,7v (1,7v also with phone power off) the only strange thing i found is ground not present on pin 10,12 but present on pin 2,4 Could be connector ground problem?

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