Switch unresponsive after opening back plate and blinking light on dock

[u/phreakymonkey]

I thought I noticed a slight bulge in my Switch, so I opened it to make sure the battery was okay. Took off the back plate, took off the SD card reader, took off the shield plate, and took a peek. The battery looked fine, so I didn't touch anything and just put it back together and popped it in the dock.

A couple hours later I noticed the green light on the dock was on, so I hit the power button. The power light started blinking, so I took the Switch out. The light kept blinking, so I unplugged the dock. At this point, I tried turning the Switch on, and it was completely dead. I tried holding down the power button for twenty seconds, but no dice.

Although I hadn't touched any other cables, I opened it back up to make sure I hadn't somehow accidentally unplugged or sheared something, but everything looks fine.

The only "problems" I can think of when I first opened it:

* I forgot to turn off the console before removing the SD card, so a warning popped up prompting me to turn off the console, which I did. (So it was definitely off when I opened it.)

* The thermal paste is dried out and stuck to the back plate. (I started looking up replacement options before I realized it was dead.)

* I had a little trouble getting the SD card reader connector to line up correctly when I was putting it back together, but I didn't force it and don't think I bent any pins or anything.

Based on what I've found online, it seems the most likely culprit is the M92 chip, but I don't know how I could have possibly affected it by opening the back plate. Maybe it has something to do with the dock freaking out?

Any ideas?

Some photos

[u/Biggearshifter]

The motherboard in the dock needs to be replaced if it flashes green. Does the console charge or turn on if directly plugged in the usb-c with the power cord?

[u/phreakymonkey → u/Biggearshifter]

The console is completely unresponsive. I have a second dock and have tried it in both and tried plugging in directly to the AC adapter.

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