A guide to repair iPhone 6 not charging
The customer sent us an iPhone 6. The problem is that the iPhone 6 is not responding when charging, there is no charging symbol. As we all know, if the phone can not be charged, it is useless to us. So we need to repair it. What should we do?
First of all, we put iPhone 6 motherboard under a microscope and then observe it, it is good board, the iPhone tail plug flex cable is good, and the resistance value measured by Fluke 15B+ Digital Multimeter also is no problem. As shown in picture.
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 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.As shown in picture.
Closest to the iPhone charge tube is the vibrating tube, we weld the jumper wire between them, and then install the iPhone to test, now the problem has been solved.
During the repair process, if you don't confirm the failure part, and need to replace the IC, we can also measure the resistance value for the pins, so even after the replacement IC, the problem is still there, but you can confirm that the replacement of the place is no problem, so you don’t need to measure it again.
I hope this article will help you.if you have any problems, please contact us on www.vipfixphone.com.
First of all, we put iPhone 6 motherboard under a microscope and then observe it, it is good board, the iPhone tail plug flex cable is good, and the resistance value measured by Fluke 15B+ Digital Multimeter also is no problem. As shown in picture.
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 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.As shown in picture.
Closest to the iPhone charge tube is the vibrating tube, we weld the jumper wire between them, and then install the iPhone to test, now the problem has been solved.
During the repair process, if you don't confirm the failure part, and need to replace the IC, we can also measure the resistance value for the pins, so even after the replacement IC, the problem is still there, but you can confirm that the replacement of the place is no problem, so you don’t need to measure it again.
I hope this article will help you.if you have any problems, please contact us on www.vipfixphone.com.
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