Ok you need to follow the level 3 guide
I was doing the guide and at the part where he said "you should have a blank serial number in the nx manager program, otherwise you didn't build the nand correctly" I checked the serial number and I got a filled in regular serial number. I continued on the guide and the switch boots to the black and white Nintendo logo for 3-6 seconds-ish and then it goes black. Got any ideas on what I should do?
Here's the YouTube comment I left him;
"I got a typical serial number in the nx manager program, not a blank one, meaning i didn't build the nand correctly according to your video. But i did follow all the steps, so is the switch still going to work correctly? Can i copy the serial number from the label of the switch (which has my hardware serial number) and edit the PRODINFO data so it has the correct one?"