I got the chance to try it today and I only get black screen still...

Lenovo x250 20CL
Serial number: PC-05NCB0
Motherboard PN: 45101201117

Today, I tried the unlocked bios provided in [URL="https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/73437-lenovo-unlock-dxe-driver-bios-collection#post73437"]this thread[/URL], after removing CMOS battery i get black screen and it powers back off and doesn't auto-restart. Original dump still gets to password prompt for sanity check.Lenovo x250 20CL
Serial number: PC-05NCB0
...

Hello, I have a supervisor password locked bios that I tried patching it following steps at [URL="https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/78215-lenovo-bios-auto-patcher-for-supervisor-password-removal#post78215"]this thread[/URL], but after I write the patched rom to the chip and boot, the bios beeps 4 + 4 times and I get no display, rewriting the original rom back makes it POST but I'm immediately asked for password.

Any idea what's the issue or if y'all can...

Hello im Foxos a 4th year EE student pursuing career in PLCs, hope that i can help and get help around this forum and just participate in discussions in general.