the problem is more often in some specific chips that burn all the time (USB-C, battery controller), are rather cheap, and are un-available because Apple (and o

the problem is more often in some specific chips that burn all the time (USB-C, battery controller), are rather cheap, and are un-available because Apple (and others) forbid the manufacturer to sell those separately. there are plenty of videos of Louis Rossmann on this issue last years, if one of those 1$ chip burn the whole motherboard is good for the bin. the "good" news is that there will be a supply of M1 chips from these boards, if BGA (un)soldering is your thing.