Hardware Nintendo Switch (HAD-CPU-01). Black screen/No boot.

[Danila17]

Hello everyone.
I have a patient Nintendo Switch, the board HAD-CPU-01.
The TYPE-C connector was broken down and replaced. Then there was no charge-replacing the M92T36-the charge went.
Just in case, PI3USB was replaced.
On the button 3,3 there is. the reaction is there - some pitalniki rise.
There is a generation on quartz.
On the chokes found:
1.10 V
1.05 V
3.30 V
0.80 V
0.60 V
1.80 V
If you install a different flash memory, the behavior does not change. If the memory from this console is set to working, then only the Nintendo logo appears.
RCM mode-goes-but the program freezes when passing commands.
Can someone tell me what? or is there a circuit or a power supply sequence? Consoles are very rarely repaired. Usually laptops.

 

[thesjaakspoiler]

Have you tried to go into the recovery mode and factory reset the Switch?
Maybe the internal NAND is messed up and needs to be rebuilt.
With Hekate you can check fuses and stuff to see if someone messed that up.
With Hekate you can dump the internal nand memory and mount that nand image to a PC to see if you can browse the files.
If you can't access the filesystem then the nand might be messed up for some reason.
If it is a second hand Switch from some auction site, maybe the NAND is from another Switch.
By default the Switch doesn't like that and won't boot.

 

[Danila17]

With Hekate you can check fuses and stuff to see if someone messed that up.

RCM mode-goes-but the program freezes when passing commands.