Hi @ll,
I am trying to fix a dead nintendo switch I got with joycon + dock for 100$ a year back. I found time to trying to repair it. I watched a dozens of youtube videos and was trying to analyze the Board the same way. I lack some basic electronic knowledge but I can solder SMD. 
My Board is a HAD-CPU-10
The preowner said it had the last time some storage or ram error!? He couldnāt tell. The switch itself didnāt seem opened or modified. Suggested a failed eMMC flash attempt, but his little kids were just playing as usual with it, so I doubt a modding attempt.
I tried some hard and soft resetās but that wont work.
When I insert the switch into the dock, the dockās LED blinks green once and stops.
I donāt have a usb-c meter, but I have a āsmartā Anker powerbank with display showing current watt output.
When I plug it to the switch, at first it only drains 1W but jumps to 6,8W after a while.
I took the board out and did some basic diode testing.
There doesnāt seem to be an obvious short on any of the famous chips.
I tested almost all diodes on the board except the CPU under the shield. The backside of the board seems to be fine. All diodeās are fine. I also canāt see āburnedā chips
But what I wondered and I dont know if thatās okay, 2 diodes didnāt beep.
Unfortunately I am not allowed to post media in a postā¦ 
I try to upload them afterwards here.
In diode mode, I see 1.112v right next to the bq24193
The other one which I donāt know what part it is (next to the LCD connector on the upper left corner) doesnāt beep too and has 1.739v on display.
Any idea how these 2 (resistor or capacitors?) are connected together?
