Repeat Q as previous one was only title, Pixel 4 power parts repair

This is all for a Pixel 4 not 4a too.

I needed to know about this thermal flare up when fixing power parts with buttons.And something about I.F exposure doesn't seem really to be anything to worry about just following up.

Also I can't source the exact part needed for the power button repair parts.Starting with the Flex cable,The actual correct buttons. Th glass on back im ok and tools for doing it seem to be able to be sourced.

Any insight would be really appreciated thank you.