Nintendo Switch - 15V 0A draw

[nebulink]

I purchased a switch on ebay. I swapped out the USB port. Everything started up fine. However, I noticed the BQ chip was getting very hot. I shut down the unit and started testing caps around the BQ. No issues discovered. Tried to turn the unit back on and no boot. Now the unit shows 15v with 0amp draw.
- Checked caps around M92, no problems
- Checked USB port with USB tester, no problem
- Checked around BQ and replaced, no problem
- Checked voltages and diode readings around, P13, BQ and M92 and MAX chips. Nothing standing out as bad.

I am at a loss with this one. Any ideas would be greatly appreciated.

 

[thesjaakspoiler]

Did you also try another battery?

Not sure if it helps but more voltage measurements and potential issues are mentioned here :
https://www.tronicsfixforum.com/t/not-charging-no-shorts-no-draws/4080/14

 

[nebulink]

Did you also try another battery?

I reviewed that thread. It doesn't really cover the situation I have. I have tried a different battery. However, I would expect to get at least a .06 to .08 draw and drop to zero with no battery connected. I don't get that initial power draw.

Thanks for the reply.

 

[cstout]

So what happened with this one?