I have a board here that… honestly I dont remember what work I did on it previously, if anything, it was just in one of my boxes so I took another look at it this weekend.
I plugged it into a screen for an initial test, and it booted up to a 2101-0001. As such I swapped out the M92T36 and plugged it back in. This time it booted up properly, but I had been using a screen where I had fixed the backlight cable and it failed, so I had no backlight.
I moved it over to a different screen, and yup, it was happily booting up!
I went back to the other unit and re-did the backlight cable fix, and once done moved the board back over. But while the screen seemed happy enough, now it was not getting past the first boot logo.
I have since moved it back to the other case again, but not working there either.
It seems clear that something has gone wrong just by attempting to fit it in the case. I check around the edges of the back of the board, and did find a tiny resistor missing by the realtek chip. I tried to swap it with the one on my donor board, but lost it. I found another nearby and fitted that, but it may be the wrong value. Eitherway, it is still not booting.
I will see if I can measure the resistor on another board and compare in a bit, but any ideas what I may have done to cause this given that it was actually working fine ( as far as booting at least )?