Thanks for the feedback!
Seen that before, should disappear after some reboots (and did in his case):
System freezing when booting is now no longer firmware related (if there’s not a hint in the history that tells us that 0085 had a boot error…)
Check the usual suspects- memory, cpu, all accesories, try to start with as little as possible attached to the mainboard, one stick memory only and so on…
(I wouldn’t try a firmware update in this state, a memory error might corrupt your firmware)