Use the Lenovo XClarity Essentials OneCLI to update the DMI in the UEFI-based solution. Type sn zzzzzzz, where zzzzzzz is the serial number.
Hi, I have two Panasonic toughbook CF-31 with AMI BIOS. One with locked BIOS, another on is OK. I used afudos to dump rom file from that unlocked one, and flashed bios on that locked one with that rom file. There was an error-wrong rom id, bu I used switch /x to ignore it.
![How to change serial number in bios lenovo 10 How to change serial number in bios lenovo 10](/uploads/1/2/5/4/125414539/659425341.jpg)
After flashing BIOS is unlocked, everything works, but serial number in BIOS is incorrect. BIOS shows serial number from laptop that was without BIOS password. I tried many programs to change serial, but non of them does work.
I read that DMIEDIT should work but I cant find link for download. Does anyone have that program or some other idea? I probably use wrong version of DMIEDIT so I cant change it that way.
After I change serial in DMIEDIT and read bios rom file again, open it in hex editor I can see that new number, but it is probably in wrong location so bios cant read it. If you open BIOS rom file in notepad you can see first 5 characters of serial and two more some characters.
Those two characters represent last five digits of the serial. So this is the procedure: - read ROM file from locked bios, open it and find serial number (7 characters - 5 are OK, 2 are encrypted).
open ROM file of unlocked bios, replace serial numbers (I found it 7 times in file) with the serial from locked bios file. Replace all 7 characters. save and flash bios with that file of unlocked bios. Now, bios is unlocked, serial number is from locked bios, and it is OK.
I get error before flash bios that ROMID is different, but there is switch /x to ignore it. Maybe someone know how to fix it? If some have some suggestions please write.