Chosen Solution
I recently replaced my nintendo switch’s USB-C port and tried charging it and nothing just a black screen, then i got a nintendo switch battery which was fully charged and plugged it in and powered it on and still the black screen, any ideas as to what might be causing this? any help would be greatly appreciated.
Most likely one of the chips on the motherboard is faulty. Could be the M92T36 chip and or the P13USB chip or possibly something else but those are the two most common. The easiest way to diagnose those is by looking for shorted capacitors near the chips like I show in this video: https://youtu.be/EP65185uGiA
