How to Fix a Watered iPhone X Max

  If your iPhone XS Max gets water and doesn't respond when you press the iPhone power button, the iPhone XS Max suddenly won't turn on and gets stuck in recovery mode. How to solve this problem?

  As we all know, after plugging in the iPhone Lightning cable, the iPhone will enter the recovery mode, which may be a system problem.

  But this iPhone XS Max doesn't do anything after pressing the power button, it won't go into recovery mode until we plug in the iPhone Lightning cable, so first we need to check the iPhone power button.

  Use a precision screwdriver to remove the screws at the bottom of the iPhone screen, place the iPhone XS Max on the CPB screen separator, and use the screen suction cup to open the screen. Disconnect the iPhone battery, then remove the iPhone XS Max display and remove the iPhone XS Max motherboard.

  Measure the iPhone XS Max motherboard with a DC power supply, trigger the iPhone XS Max motherboard with tweezers, and find that the current does not respond, indicating that the problem is on the iPhone motherboard.

  Using a Fluke 17B+ digital multimeter to measure the resistance value of the iPhone power button socket, the measured resistance value is 103, while the normal value should be several hundred, which is not normal.

  Observing the iPhone XS Max motherboard under a trinocular microscope, no abnormalities were found on the side of the iPhone power button socket.


  Log in to the WUXINJI account to view the schematic diagram of the iPhone XS Max. You can see that J4300 passes through the anti-static diode DZ4310, then passes through the R4310 resistor and C4310 filter capacitor, and finally reaches the main power chip. So now we suspect the problem with the anti-static diode DZ4310.

  Remove it directly with a QUICK TS1200A soldering iron, wipe it clean with a brush, and then measure it again with a digital multimeter. At this time, the resistance value of the iPhone power button socket is normal.

  Assemble the iPhone XS Max, press the power button, the Apple logo appears normally, and successfully enter the IOS system.

  According to the above steps, you can repair the iPhone XS Max with water. If you need the above mobile phone repair tools, welcome to our Phonefix website.


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