Low PP_GPU and low PP_CPU_PCORE after water damage?

Hi,

We have a water damaged iPhone 8 that had a VDD_Main short, this has been alleviated, with ZXW I can see a lot of diode mode readings but the values of these two lines (typically low lines) seem very low. Normally these are between 50Ω and 70Ω(?). I don’t have a board to directly compare so I thought I’d ask here.

Approx readings with a Fluke 115 :

9.6Ω on PP_GPU

3.2Ω on PP_CPU_PCORE

After the VDD_Main was brought back from the short, we get an Apple logo and 0.10mA power consumption with no signs of entering Recovery or DFU mode (even with 2UUL ResDog.

I’ve measured voltages in various places and there seems to be no drops or anything like that - anybody have any further ideas about this?

Thank you.