Ask ThinkPad L14 Gen 4 (LG4 LT5 RPL RT) - Clear Password / Disable Secure Boot

[noktabil]

Hi,

Need help with a password locked ThinkPad L14 Gen 4. I am completely locked out by Secure Boot and cannot boot any OS.

Since the Nuvoton NPCX997KAABX EC chip isn't supported by my RT809H, I have desoldered and dumped the main 16MB BIOS chip.

Specs:

• Model: ThinkPad L14 Gen 4 (21H1-003DGE)
• Serial Number: PW-06HVRL
• Motherboard: LG4 LT5 RPL RT UMA MB 8L 223042-1 (448.0SJ41.0011)

Request: Can anyone patch my attached dump to either clear the password or just force Secure Boot OFF so I can boot into an OS?

Original 16MB dump attached. Thank you!

 

[ThienBui]

file 16mb not for mian bios

Main bios 64mb