I had a post before that i have just removed 0042 is a disaster hence the removal of the post.. don't update tons of issues for real.
I had a dead board 2days after updating to 0042 i restarted the PC and it never booted error 0d (i guessed over dose) was with or without memory
anyway fixed the board same day and went back to 0039
I did lots of things that didn't bare fruits
here is what worked for me
I shut it down then pressed the back to bios then installed memory and switched it on then it come back/booted then i reverted back to 0035 through recovery mode, then updated to 0039 after using F7 method