We have several NUCs over several establishments that we'd like to maintain remotely.
The Intel Express BIOS update works for some NUCs, installs the BIOS with no issues, other NUCs it says it's about to install the BIOS but in reality actually just reboots the PC. I tested this morning with two identically spec'd NUC's (NUC7i3BNH, 4gb RAM, 120gb SSD). One updated no issues, one refuses to update.
Why may this be?
It the NUC is struggling to initialize the memory included, its BIOS may "forget" that an update is in progress and do nothing but reboot. I would replace the memory in the units seeing this issue and see whether this fixes it.
Hope this helps,