I was running my FW13 11th Gen i7 1165 board in standalone mode in one of the 3D printed cases. All was fine, decided to update the BIOS. Was running 3.17, latest is 3.24 but as per the downloads page you need to update to 3.23 first.
Ran the 3.23 update from windows 11, no errors, rebooted into the flashing utility screen, again saw no errors - the board then rebooted and was not displaying and the lights were flashing through a sequence, mostly green but with a few red - I understand that this is the onboard diag, suggesting that the board was no longer in standalone mode. After about a minute it turned itself off, I powered on again and it went through the same thing, then auto powered off and now has no sign of life at all, not even the led to show the power is plugged in.