No Dock Mode - No Quick Charge after BSOD repair

Nintendo Questions Nintendo Switch
1

I received a Nintendo Switch with a BSOD. I have done a SoC reflowing which seems to fix the issue and Switch is booting up again.
With the final tests I have seen that the dock mode is not working and there is no picture on the TV.
I haven’t found anything obvious to I changed the PI3USB with no effect.

After testing everything again a realized that the switch does not do any quick charge - so even when the switch is booted the switch is charging but only with 0.31A (both sides) - this is probably the problem with the dock.

As quick charging does not work on both sided I assume this is not a problem with the port (but not sure).

Any ideas / experiences what could cause a working switch from quick charge ?

2

Try to change M92T36 and inspect the USB-C port

3

Thanks for the advice - with the fast charging problem I gamed myself - I have used a new power socket with an integrated USB and this USB seems not to have enough power for fast charging …

So fast charging is not the problem, but dock mode still not working…

Precisely HDMI signal is detected but screen stays black

4

are you using the same power socket for the dock ? I am asking because i don’t think it works with power adapter that doesn’t provide 15V AFAIK