I have recently bought an esprimo q957 mini pc, it has no bios password and i wanted it because it has a q270 chipset so it would allow me to use vpro.
While it has no bios password, the mebx passsword is set and i cannot reset it , bios option allows to reset everything but without the password(says so explicitly).
I also looked over the motherboard documentation and tried setting the board in recovery mod, that did not reset the mebx password.
So my question is , would a modded bios flashed with a ch431a solve this issue ?
Any reply is appreciated !
Thank you for the reply!
Yes, the normal bios setting allows for full unprovisioning, minus the password reset (states it clearly in the description), I tried it just to be sure
Should this be done with a flasher or could the efiflash do the job ?
Also, could you please point me to the correct tutorial for the ME region replacement?
As you already pointed, an thank you so soo much for all the digging you’ve been doing, the motherboard has some pins, I do not know which are the ones you talk about, I only know that the flash chip(bios I suppose) is on the back side, near the RAM area.
I own a ch341a(the black one) never used it , and it would be a great first use case
In my mind the way I could do what you suggest is as follows:
Open the little one up, and read the bios chip from the backside
Using the tool you suggested(UEFIToolNE), and some documentation, extrat and later on replace ME(using UEFITool)
Write the new file back to the bios chip
This is the backup I made using the efiflash tool before updating the bios to the latest one https://we.tl/t-8lyqkf7iWK
Before writing this post, I already tried replacing the ME version using coffetime and flashing it back, the flash succeeded but ME did not change…later on I found out that ME downgrade is not possible without a flasher …lucky me :))
It was the original backup.
In the meantime, I have successfully backed up, modified and write the modded bios(as you instructed)…but i bricked my device, and i dont think it is because of the bios, since i flashed the original one back and it still wont start.
While dissasmeling, i found a dumb mistake, the previous owner screwed the cpu heatsing so hard in the socked that when i unscrewed the cooler it unscrued the back side of the socket plate as well… i removed the cooler and because of the automatism(or just being a idiot) i flipped the mobo(being accostomed to fixed cpus , be it amd or intel) …and dropped the cpu on the floor.
Needles to say i think that i killed the poor i3.
I will postpone doing anything for a week until i get in my hometown where i have one spare 7500t.
Until then , thank you for the help, I really appreciate it a lot, and if the mobo is not dead, i really hope i could get ahold of you if needed.
For the sake of speed and security, I uploaded all the files to my own server, you can also upload if you need.
I know that the i3 dont support vpro, but my 7500t from home does.
The big plan was, buy the q957(it was under 75 euro) , upgrade the ram(already had 16gigs) and the cpu(already have the 7500t) and set it as a secondary node for my proxmox cluster, next to my p330 tiny.
Vpro is extremely important for me as if something goes south, i can control the devices and hard reset them from a distance.
The socket is perfect no issue there, the cpu was dropped by me, so it’s probably gone.
I will try as said, when i get in my hometown a different cpu to make sure.
Until then, thank you so so much for your help