How to Fix iPhone 6S Not Charging Issue

The customer sent us an iPhone 6S motherboard to repair, the faulty described is that this iPhone 6S is not charging.

This iPhone 6S motherboard has a slight water phenomenon, and causes iPhone 6S not to boot, after the repair, iPhone 6S can be turned on normally. However, after testing, the iPhone 6S won't charge, there is no response when insert the charger, no sign of charging，the iPhone can be connected to computer.

Use Stereo Zoom Microscope to observe the iPhone charge circuit, there are no visible signs of water damage on iPhone tail plugs. Picture 1



Considering that the upper part of the iPhone motherboard has water damage，and the iPhone can be connected to the computer, according to the previously repair experience, we should focus on the water damage circuit of the iPhone motherboard. Check it carefully, we find the resistor R4510 is corroded by water.

After check iPhone 6S schematic diagram on WUXINJI Dongle, we know that this circuit for iPhone main power that output to the USB control signal TRistat_USB. Picture 2



Now, we found the faulty part, so, clean the corroded area and replace the resistor by using QUICK 861DW hot air rework station and Titanium Alloy Tweezers.  Picture 3




Install the iPhone and test it, all functions works normally.


Tips: If you are interested in the content of this article, or if you want buy phone repair tool, check out www.vipprogrammer.com, you will get any iPhone repair tools and devices you want!

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