norns won't turn on any more after PCB replacement

hi, I got the PCB in my norns replaced (officially, by monome) and it worked great for like a day after but now it won’t boot at all any more.
I thought it would be a power supply issue however I know my power supply is good and the power outlet is good, and I know that the battery and display are reconnected correctly (as it worked before today). Any help with what might be happening? The status LED doesn’t change when I plug it in, pressing the reset button or holding K1 does nothing, and I’m out of ideas.

Sounds like an issue for to me.

alternatively, there’s a few things you could check if you are up for opening it up - let us know if you want to go that route