Just an update on the Hades Canyon NUC and thunderbolt. Out of simple curiosity I took the latest iMac18,3 Alpine Ridge firmware update binary from the Catalina 10.15.4 updater, padded it with 0xFF's until it was exactly 1Mb in size and then flashed it with a programmer to the Thunderbolt chip. Much to my amazement it works 100% apart from one bug which I've had with all the patched firmwares. I have a LaCie 2big Dock (Thunderbolt 3 RAID box) which works fine apart from not powering off completely when I shut the NUC down. The drives spin down, the computer shuts off then right at the very end the drives spin up again. Has anyone else had this powering down problem with their patched firmwares? It powers off properly in Windows with the native thunderbolt firmware (v33)
@CaseySJ attached is the updated v41.4 padded binary to add to the firmware repo if you so desire...