Hardware M9 chip blown after replacement

[OhItsSlick]

Hey there, hopefully someone here can point me in the right direction. So I’ve got a switch that wasn’t turning on and wasn’t pulling any amps. Upon board diagnostics, I found one of the caps next to the M9 IC was shorted to ground. I removed the chip and the short left with it, or so I thought. After replacing M9 the switch started to pull 0.50 amps and the battery began to charge. After a bit of charging I turned the switch on and the “Nintendo Switch” logo popped up and then was followed by a “2101-0001” error code. The switch then started to pull 0.13 amps and no longer charged. The cap that was shorted to ground before is now shorted again with the NEW M9 replacement. Does anyone have any experience dealing with this sort of fault where the M9 chip seems to blow even after replacement? Thank you for reading.

 

[OhItsSlick]

The solution for this particular switch was to replace the charging port. Despite it looking fine, it was constantly frying M9s so replacing the charging port and M9 (again x3) resolved this issue for me.