iPhone 8 not charging hardware solution?

JWT 07/05/2018

received a not charging iPhone 8, I have both the charging flex and the battery replaced. There is still no signs of charing. And the battery indicator shows only 1% battery life, while it is actually 88%. The wireless charging is not working either. however, it can be connected to iTunes. Have no idea what to do next?
Answers

REWA

07/18/2018

According to your description, The USB circuit works normally. The faulty may related to battery detection circuit. This circuit is consist of the battery connection J3200, Feld-effect tube Q3200, Q3201, Electric resistance R3202, R3201 and A11 processor U1000. So you troubleshooting start with these components.

Shawne

07/06/2018

you need check the USB IC to see if that is broken or just replace one, USB IC abnormal is usually the point
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