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iPhone X inlet water cannot be turned on repair
Machine model: iPhone X
Symptoms: water damage Won’t Turn On
Maintenance process:
I received water damage iPhone X, and the customer described the mobile phone Won’t Turn On. Power-on test, press power-on 200mA to take off.
Dismantle the machine, single motherboard or 200mA jump. Microscopically, there is no obvious corrode. With Xinzhizao Soft heating table, the main board separate and water damage corrode were not found in the middle of the double-layer board. After cleaning, the single-layer upper-layer main board can boot into the system normally.
The test rack is connected to no booting in the lower layer of the motherboard, and the current becomes smaller. At 80, the jump is finally set at 80, which is a bit like i2c current. Measure the diode value of the whole lower circle, and find that the I2c0 _ SMC _ SCL (S29 pin, S27 pin, S28 pin) three pin bits of wireless charging IC are all pin.
iPhone X inlet water cannot be turned on repair Figure 1.
Dig out 3 points directly, upload to Solder Mask, and disable wireless charging (communicate with customers in advance).
iPhone X inlet water cannot be turned on repair Figure 2
REBALLING,welding, installation machine,Normally boot, all the test functions are normal.
iPhone X inlet water cannot be turned on repair Figure 3
