Crystal Quartz Frequecy Generator For Touch Screen,Wifi and GPS Fault!
Touch crystal chip
Change this part if your touch behaves erratically (ghosting) or non responsive after a physical drop, electric short or water damage. Please check if your touch connector is not physically damaged and all pins are not bent or corroded then this is the part you want to change to fix your touch screen.
Change this quartz can fix digitizer touch problems.
Here friend how is in iphone 4S and iPad 2 a part of light ic is in PMIC.
iPhone 4S schematic was not available and i knew this only by looking in picture of 4S.
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