How to Decode BIOS password for RedmiBook Pro15 2022 6800H
RedmiBook Pro 1542022 6800H
SKU: TM2113-39463
Model Number: RMA2204-AB
CMIIT ID: 2022AP1835
SN: 39463/22WD01355
BIOS version: RMARB5B0P1010 20230628
1. I bought this laptop from flea market, and the seller said that he had never set a password, however here is a password required when pressing F2 to enter BIOS.
2. And after entering incorrrect password 3 times, there is no any useful information like "recovery code"
3. I used universal bios backup tool, and dumped 8MB bin file, but hex code after "SystemSupervisorPw" is "20980EAA8E4F3FD412905776985A11421B3B1BC41CD04 3173 B2970B5E9FBFF232E", it seems like a SHA256 hash code, because HexEditor can not decode it. But as far as I know it, SHA256 length should be 64, here is 66, so weird?
4. in the first refferred thread, I saw the same problem, and it's hex code also started with "20", so I think "20" is a maker instead of a part of Hash Code. so I treated "980EAA8E4F3FD412905776985A11421B3B1BC41CD0431 73 B2970B5E9FBFF232E" as the real hash code, and wrote a script to try all combination of SHA256 hash code of digitals below 10 digitals, but no one macthed, maybe there is salt added, or there is other chars beyond number?
5. so now I want to get help to how to decode it? or anyone could provide a clean original bios file (I have searched several hours on Xiaomi's official website: https://www.mi.com/service/notebook, but really nothing found). I will thank a lot.
refference:
1. https://www.badcaps.net/forum/troubl...-bios-password
2. https://www.badcaps.net/forum/troubl...word-bios-dump
chinese in picture of entering bios means:
输入密码:
enter password:
错误状态
输入三次错误密码
请重置系統
error state
Enter wrong password three times
Please reset the system
SKU: TM2113-39463
Model Number: RMA2204-AB
CMIIT ID: 2022AP1835
SN: 39463/22WD01355
BIOS version: RMARB5B0P1010 20230628
1. I bought this laptop from flea market, and the seller said that he had never set a password, however here is a password required when pressing F2 to enter BIOS.
2. And after entering incorrrect password 3 times, there is no any useful information like "recovery code"
3. I used universal bios backup tool, and dumped 8MB bin file, but hex code after "SystemSupervisorPw" is "20980EAA8E4F3FD412905776985A11421B3B1BC41CD04 3173 B2970B5E9FBFF232E", it seems like a SHA256 hash code, because HexEditor can not decode it. But as far as I know it, SHA256 length should be 64, here is 66, so weird?
4. in the first refferred thread, I saw the same problem, and it's hex code also started with "20", so I think "20" is a maker instead of a part of Hash Code. so I treated "980EAA8E4F3FD412905776985A11421B3B1BC41CD0431 73 B2970B5E9FBFF232E" as the real hash code, and wrote a script to try all combination of SHA256 hash code of digitals below 10 digitals, but no one macthed, maybe there is salt added, or there is other chars beyond number?
5. so now I want to get help to how to decode it? or anyone could provide a clean original bios file (I have searched several hours on Xiaomi's official website: https://www.mi.com/service/notebook, but really nothing found). I will thank a lot.
refference:
1. https://www.badcaps.net/forum/troubl...-bios-password
2. https://www.badcaps.net/forum/troubl...word-bios-dump
chinese in picture of entering bios means:
输入密码:
enter password:
错误状态
输入三次错误密码
请重置系統
error state
Enter wrong password three times
Please reset the system
Attached Files