Solution: iPhone 6S has no display after turn on

We received an iPhone 6S, the problem is that the iPhone 6S LCD screen is not displayed after booting. Due to other issues, this iPhone 6S has been fixed once and now we need to fix it again. First of all, what should we do?




Use the phone open tool to remove the iPhone 6S, then use the DPS DC power to start the iPhone, the iPhone can be opened smoothly.


Install the iPhone battery, assemble the iPhone, press the iPhone power button to turn on iPhone through by iPhone battery, the iPhone is turned on, but the iPhone LCD screen doesn't display.

Considering the voltage of iPhone batter is 3.6V to 4.3V, so we adjust the DPS DC power supply to the lowest value 3.6V, the result tested is that the iPhone doesn't display after booting.

According to our repair experience, in this case, the iPhone no display problem is caused by the low display boost.

Check iPhone schematic diagram through by WUXINJI Dongle, based on iPhone 6S schematic diagram, we know that the iPhone display boost capacitor are C4007 and C4008.




With the help of the QUICK 861DW hot air rework station and tweezers, we successfully removed the two capacitors and installed new capacitors.


Assembling the iPhone 6S and testing it, now the iPhone 6S is displaying properly.

If you have other methods or suggestions to fix this problem. Welcome to contact us on www.vipfixphone.com.

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