We received an iPhone X. The error described is that the white Apple logo is repeatedly opened and restarted. This iPhone was once damaged by water. After getting the phone, it can display the white apple logo after startup and restart after a few seconds. Due to the impact of the 7th generation baseband issue last year. The first reaction you will encounter is the baseband issue, then we choose to brush this iPhone.

First, we use the iphone engraving tool to disassemble our iphone and connect the adjustable power supply to observe the current, and the current jumps normally. When the current jumps above 1A, the black screen will restart after two jumps. In this case, the possibility of the iphone baseband CPU is ruled out. When the current is up to 1A, in addition to the baseband search signal, and the WiFi and external configuration is also the system detection process, we will first check the external configuration.

According to the previous analysis, unplug the front sensing ribbon wire, and the system is started normally. At this time, many guys maybe think how simple it is! Just need to replace an front sensing ribbon wire. On the condition that it is another model of the iPhone, indeed it is. But we are now repairing the iPhone X, and the iphone X front-sensing ribbon wire is encrypted with iphone chip. If it is replaced, the face recognition will be gone. If the iphone X has no face recognition, it is not as good as an iPhone8. So we choose to repair it.

Removing the front sensing ribbon wire from the screen carefully. The wire is very thin and brittle. So we must be careful. Remove it and place it under the 3.5X-90X stereo zoom microscope to observe.

You can see signs of water corrosion on the sensing ribbon wire. Everything will be easy to find some clues. Pay attention to the temperature when you remove it, this chip is easy to be damaged

After removing the chip, it is really corroded. After cleaning it, pray that the chip will not be burned. Take out the cleaning non dust cloth, after cleaning, install the ribbon wire, turn it on normally, open the face recognition, anfd it is also normal. Now, the repair is over.

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