Rep: 45
2
I was fixing an iPhone 6 today with bad lcd and during the repair the screen stopped working on the phone. I then tested a fully functional screen on the device and it didnt turn on, afterwards i put the bad screen on a working iphone 6 and the screen worked as well as the other. How can i fix it so that the device that neither screens work on can work
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Rep: 221.4k
15
289
806
It sounds like the backlight circuit may have been damaged when you replaced the screen. Did you disconnect the battery prior to disconnecting the LCD connection?
Try the following:
This will point towards a backlight circuit issue. It is usually a blown backlight filter. This requires micro-soldering. If you don't have the proper tools or experience, then consider finding a reputable shop that does micro-soldering repairs.
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I disconnected the battery cable before starting
Its also not recognized by itunes
The phone not being recognized by iTunes could be caused by a defective Tristar IC. This would also affect the charging of the battery. Can you measure the voltage of the battery with a multimeter? Unplug the battery and measure directly on the battery's connector. It should read 3.8V - 4.2 V.
@Minho i put a brand new battery in.. it gets hot on the black part below the connecters for the lcd
Can you measure the voltage of the battery with a multimeter? Unplug the battery and measure directly on the battery's connector. It should read 3.8V - 4.2 V.
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