XR Not charging but starts, not Charging IC

Hi!

I have a weird case. Got in two phones from the same customer. One iPhone XR and one 8p. Both have the EXACT same failure. They take no charge at all, shows 0.01A when i connect it to charger. If i plug in a fresh battery or DC power the phone works great.

I have used ICC pro wich tells me both dock flex and charging IC works fine. I have messure the diode value on dock FPC and batt FPC, everything looks fine.

Any idea what possible could be the reason here?

Thanks!