[New to repairs] No stage 2 boot, no shorts, charging, stage 1 with missing power rails

No, that’s switch number 1, the one with the missing 1.35V rail. I’m still waiting for my EMMC reader to arrive, to be able to rule that out - or find that it was faulty from the beginning. It should be there in a couple of days.

Also, Switch #2 (the one that was fixed) couldn’t get passed the installation process because the left joycon wouldn’t be recognized. So I took the rail out and noticed it was slightly different from the right one (more wear marks), but more importantly, the ribbon was ripped beyond repair.

So I tried the other joycon rail from the other Switch, and it wouldn’t work either… because it was completely corroded, to a point where copper had been completely eaten away. Never mind, I thought, they’re cheap, let’s get new ones.

I finally got the parts tonight… but the Switch is now stuck on the Switch logo! I tried going into maintenance mode, and it reads a 2134-0501 error. I’m pretty sure that’s M92 related, isn’t it?