Fix iPhone 6 with Professional Phone Repair Tool

Got the problem iPhone 6, we knew it was much intractability as it was described many faults occurred, like battery, charging IC and  PCB motherboard .

We doubt there seems to happen a secondary damaged, if it was just repaired for one time, it won't happen so many fault.  Then we have got it, we should be responsible for it, with out professional phone repair tool to fix it, cure it, keeping your step in our tutorial.

1. Use a Fluke digital multimeter to measure the voltage of (C1408, C1700) USB were given to U1401 charge tube and U1700 (U2), the both 5V are normal

2. Respectively remove the U2 and charge tube, measure the bottom voltage to see whether the iPhone 6 motherboard has broken cables, the result shows that the two chips are all normal.

3. Replace the two new chips and charge to have a test, the result is same.

4. Connect the iPhone 6 with computer, the battery life shows no data on Ace assistant, this situation often happens on iPhone 6 and iPhone 6P, basically it's caused by the problem of CPU to the charge tube battery detection circuit, also the solutions are different.

5. By checking 2.2K resistance(remove R0302 and R0303 from junk motherboard) on WUXINJI schematic diagram, then connect the two resistors together. One end receives the main power supply, and the other end is grounded, and solder a jumper wire to charge tube G1 pin in the middele of the two resistors.

6. Personally, I think this method is troublesome, there is another simple way to use: add a 10K resistance (R0307 or R0310) on C1700(next to U2), which can be directly welded to one end of the C1700 PP3.0V, the other end can be welded to the charge tube G1 pin, then use green oil and UV light to solid.

7. Install the iPhone 6 device to test, charging function is normal now.

That is all the detail process, if you are interested in DIY, maybe you can try to do it by yourself, any tools needs pls contact us.