Maintenance of iPhone 6 without charging

iPhone 6 is not charged. It is found that the USB chip pad break off is serious, and the fault is repaired after patching.

Machine model: iPhone 6
Fault phenomenon: the mobile phone does not charge
Maintenance process: observe the USB part and find that many points are indeed dropped. The startup current of DC power supply switch on the board is normal. Dig out all the dropped points.

Maintenance of iPhone 6 without charging Figure 1.

After digging out, start patching, and then Solder Mask UV curable.

Maintenance of iPhone 6 without charging Figure 2.

After that, install the USB chip.

Maintenance of iPhone 6 without charging Figure 3.
After testing the rear housing assembly and screen, it is found that the charging and on-line are all normal.