Not charging but recognizes in 3utools

I have an iPhone 8 come in for repair from a customer…..

Anyways, the iPhone 8 does not charge. I even put a new battery in and it’ll boot but will not charge. It works perfectly and read with 3utools and shows proper battery percentage so I don’t think Tristar is involved. I also checked on the board for q3200 and q3201 and they are there and not missing. The resistors are also on the board. What would be the culprit of this on board?

I also tried a new charging port and still nothing. My amp meter shows 0.02amps when a new battery is connected and on…. However , battery icon doesn’t turn green for chsrging.. what’s most likely fault? It feels o me it’s missing some sort of 5volt rail or something or usb connection to charge…

Thank you