How to Fix iPhone 6s Plus Charging Issue - Look Here!

The charging problem can divided into many different situations: the iPhone battery power percentage is getting less during the charging, power down status can be charged successfully but cannot charge after boot and unable to recognize USB, etc.




First ,we check iPhone schematic diagram on WUXINJI Dongle, we found that the PP5V0_USB(5.0V) that was sent from the iPhone Tail Plug circuit, and then continue sent to the charging IC via the trailing plug interface, and then go through the charging protect tube, finally send it to iPhone USB control IC.

After disassemble the iPhone by phone opening tools, remove the iPhone motherboard, use Fluke 15B+Digital Multimeter to measure the 5.0V voltage (PP5V0_USB) next to the charging IC, and then measure the 5.0V voltage (PP5V0_USB) next to the USB control IC to check is it working properly.



If both these 5.0V is working properly, then you just need replace the iPhone charging IC and USB control IC.

If 5.0V(PP5V0_USB) next to charging IC exist, but 5.0V(PP5V0_USB) next to USB control IC doesn’t exist, the iPhone power down status can be charged successfully but cannot charge after boot, or can’t recognize USB. In order to fix this trouble, we can use hot air gun to short connect charge protection tube.

Moreover, damaged charging capacitor L2300 also will cause iPhone power percentage won’t increase during the charging.

Tips: More cell phone repair technical knowledge or tools you need, please contact Here!


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