iPhone X Screen Failure for repair

Machine model:iPhone X
Fault phenomenon:iPhone X into the tea, resulting in screen failure.

Repair process: disassemble iPhone X, take out the main board, no trace of water damage was found.Power on, press the power on button, found that the phone can be turned on.Because the mobile phone has been taken apart, is the screen broken?Install it with the original tester screen, and the mobile phone will not be displayed when it is turned on.

iPhone X Screen Failure for repair Figure 1.
Looking at the motherboard, we found that PCB layer at Screw hole was broken through. Looking at the drawing, we found that there was a cable under Screw hole, which was the Mipi bus from CPU to display stand.After measurement, it is found that the value of four wires in Mipi bus is ol.Next to it is the charging IC. Take off the charging IC, scrape off PCB layer, find out the broken wire. After Jump wire is coated with Solder Mask, install the charging IC. The power on test function is normal.