Switch Lite charging 0.41A but not powering on

I have a Switch Lite charging at 0.41A and it is not powering on. I checked the whole motherboard for shorted caps but could not find any except for these that are normally shorted to ground on both sides (I used a ground testing map someone posted here a while ago). The battery should also be ok (its voltage is 3.73V which should be fine).

The switch comes up as APX device on my PC when I plug it in, so I think the CPU should still be alive. It is also getting warm a bit when I leave it plugged in for a while.

Is there anything I can further diagnose on the mainboard or do you have any Idea what it could be?

I would appreciate any help