Solution: iPhone X Won't Turn On

According to the customer's description, the iPhone X would not turn on after it drop accidentally. Then the cell phone reports error 56 when restore it. How did this happen? Let's test and repair step by step.

Since iPhone X motherboard 2 layers are connected through the middle column, the solder points are very easy to get dropped. so we guess that the solder points from NFC chip to the CPU part have fell off.

Disassemble the iPhone X by iPhone opening tools, remove the upper board off the main board, when separate the main board we see there is a row of points have fell off.

Check the location map on WUXINJI dongle, it is surrounded by a ground wire, in fact, there are 6 useful points dropped. The ground wire does not need to be filled, the 6 useful points are added by professional phone welding tools. These are the signal wires of the NFC chip, so the iPhone X would report error 56.

Then the tin of the middle column is repaired by iPhone X BGA reballing stencil, and the AP part is welded back by us too.

Install the main board and restore by iTunes, it passes normally, and all the test function is normal now.

Finally the repair is successful finished!

Summary: The fault is due to the solder points of NFC chip's signal to the CPU solder joint were dropped, causing the error 56.

Get more cell phone repair details from www.vipfixphone.com

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