How to Repair the iPhone 6 Water Inlet Leakage Triggering Large Current issue

We've got a lot of questions about iPhone, such as some people iPhone 6 device leaks electricity after dropping into water and the usage time is shortened badly.
Most of the people who use iPhone have this problem, How to solve this problem? what to do? Now, we can follows Vip pro shop team offer some professional guide to fix it.



Fault Phenomenon:

iPhone 6 V version device got water in,there is electrical leakage when connecting it to electricity, which triggers large current.

Repair Process:

1. Fist of all, The iPhone 6 motherboard waterproof stickers changes into red, indicating that the motherboard got into the water, the power supply shows leakage 31mA when electricity is connected. As shown in picture 4-4-1.



2. Short start signal boot, current jumps into 223mA as shown in picture 4-4-2.



3. This kind of fault is usually caused by chip damage after water inlet, measuring each power supply is normal value, measuring the data cable of the 12C0 bus to the ground value is only 002, as shown in picture 4-4-3, indicating that the 12C0 is short-circuit to the ground, the normal value should be about 400.


4. Combining the above phenomenon, the fault target is locked in the U1602 flash power supply IC, U1503 fingerprint power supply IC, U1501 display touch IC, U1502 backlight power supply IC. We can see there is a little oxidation around U1501, so remove it immediately then measure 12C0 to the ground value is 352 (after board gets cool only about 400), as shown in picture 4-4-4.



5. Connecting multimeter, leakage current is only 001, indicating that after the demolition of U1501, there is no longer leakage of electricity, change a U1501 chip and then boot, the current normal jump, the screen shows white apple, so here we succeed in iPhone 6 motherboard maintenance. As shown in picture 4-4-5.



Tips: If you’d like to know more about the preferential iphone repair tool maintenance please read on www.vipprogrammer.com. all of these phone repair tools, and you can find it.

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