Fix iPhone X Touch Screen Not Working- Board Troubleshooting-Logicboard Repair

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Fix iPhone X Touch Screen Not Working - Board Troubleshooting-Logicboard Repair.
The iPhone X touch screen won’t work, we replace the screen with a new one but it still has response. We conclude that the Logic Board has been faulty.
We check the resistance of digitizer PCB connector and the values are OK. Then we measure the diode readings of the capacitors and all values are normal. We hereby conclude that the Inductor L5600 or the touch IC U5600 might be faulty.
Since replacing an inductor is simpler, so we replace the Inductor L5600 with a new one and problem solved.

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