Best way to fix iPhone 6 not charging fault

The iPhone 6 has not charging fault, how to fix it? Here is the best way. Recharge the iPhone 6 by iPhone lightning cable, but the iPhone has no response, and the charge symbol doesn't appears.

Check iPhone motherboard by Stereo Zoom Microscope, all looks good, and then use Fluke 15B+ Digital Multimeter to measure it, the data tested is normal.

Because we didn't find the problem after measuring, and according to our experience, we think the iPhone U2 IC might be damaged. Use QUICK 861DW hot air rework station to remove the iPhone U2 IC, and then replace it with the new one.

After replace the iPhone U2 IC, measure the resistance value again, the data is normal. So we test the iPhone charge function, the fault still there.

Now remove the iPhone charge tube, and then measure the resistance value, we found the G3 pin is no resistance value.

Check iPhone schematic diagram in the WUXINJI Dongle, we know that the G3 pin is I2c 1 bus, the G3 pin is disconnected, so the iPhone charge tube not working, no resistance value means disconnection. We can fix it by welding the jump wire.

Closest to the iPhone charge tube is the vibrating tube, we weld the jumper wire between them.

Finally, assemble the iPhone, and charge it agian, now the iPhone 6 has response,  the iPhone 6 charges properly.