Here is an iPhone X with touch screen failure, the iPhone X touch screen is unavailable. After the iPhone X is turned on, touch the iPhone X screen, it doesn't respond. How to solve the iPhone X touch screen issue? As we know, after troubleshooting software problems, usually there are two reasons on hardware, one is iPhone screen itself problem, and the other one is iPhone motherboard problem.

Turn off the iPhone X, use screwdrivers and LCD opening tools to disassemble the iPhone X, disconnect the iPhone X battery, and then remove the iPhone X display assembly.

First we are going to replace a new iPhone X display assembly. Take a new iPhone X display assembly, and then install it to the iPhone X. Press the iPhone X power button to turn it on, and then touch the iPhone touch screen, now it's responding,the iPhone touch screen is working properly.

Based on the previous test, we confirmed that this was an issue with the iPhone X touch screen. Now we need to check the iPhone original screen.

Observe the iPhone screen under a Black Trinocular Microscope, the iPhone touch screen flex cable is good, the touch connector is good, the iPhone touch flex cable and display flex cable also is good, so the problem is on the iPhone touch IC or screen.

Check touch IC first. Use hot air gun to remove the black adhesive around the touch IC, and then use BGA Pry blade to remove the touch IC.

Clean the solder pad, apply some solder paste to the solder pad, and then use DES H92 hot air gun to install a new touch to it. After soldering, clean it with PCB cleaner.

Now assemble this original screen to the iPhone X, press the power button, the iPhone X turns on normally. Test the iPhone X touch screen, it's working well, the iPhone X touch screen failure has been solved.

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