Lenovo M900 iq1x0ms bios

[hoaca388]

Hi!

I have a ThinkCentre M900 (Tiny), which won't POST. It turn's on, when AC is connected. Fan spins down after a while, so EC is working, but no picture and no beep.
Hopefully, it can be fixed by cleaning the BIOS.

Machine Type: 10FL
Model Number: S1QS00
S/N: S4BB8418

Attached is the Dump.

Thanks in Advance!

M900 Desktop (ThinkCentre) - Type 10FL

[Nebukadnerzar_V]

M900 Desktop (ThinkCentre) - Type 10FL

Thank you! That fixed the machine!

Is there a tool or another way to transfer the DMI Data (S/N, UUID, Windows License) from the broken dump to the new BIOS?
I found a "Lenovo DMI Decryptor" Tool on GitHub, but it was unable to find the DMI block in my dump.

[hoaca388]

Thank you! That fixed the machine!

Is there a tool or another way to transfer the DMI Data (S/N, UUID, Windows License) from the broken dump to the new BIOS?
I found a "Lenovo DMI Decryptor" Tool on GitHub, but it was unable to find the DMI block in my dump.

DMI is not in bios, it is in EC.

[Nebukadnerzar_V]

DMI is not in bios, it is in EC.

Thank you for sharing this information!

I am wondering, why my DMI is empty now after just flashing the Main-BIOS.
I did not change the EC firmware. How can I get back the DMI data?

[SMDFlea]

Thank you for sharing this information!

I am wondering, why my DMI is empty now after just flashing the Main-BIOS.
I did not change the EC firmware. How can I get back the DMI data?

Try the attached bios, your windows key has been added.

To enter the DMI run the bios update executable. Read steps 6 and 7 in the README ,and input y instead on n to enter the serial number etc.

Bios update - https://download.lenovo.com/pccbbs/t.../fwjybfusa.exe

README - https://download.lenovo.com/pccbbs/t.../fwjybfusa.txt

6. You will see the prompt "Would you like to update the Serial
Number?". Input "n" and press Enter.

7. Then you will see the prompt "Would you like to update the
Machine Type and Model?". Input "n" and press Enter again.
Then the BIOS update process will start.

.

[Nebukadnerzar_V]

Try the attached bios, your windows key has been added.

To enter the DMI run the bios update executable. Read steps 6 and 7 in the README ,and input y instead on n to enter the serial number etc.

Bios update - https://download.lenovo.com/pccbbs/t.../fwjybfusa.exe

README - https://download.lenovo.com/pccbbs/t.../fwjybfusa.txt

6. You will see the prompt "Would you like to update the Serial
Number?". Input "n" and press Enter.

7. Then you will see the prompt "Would you like to update the
Machine Type and Model?". Input "n" and press Enter again.
Then the BIOS update process will start.

.

Thanks for the effort! However, with that file, the machine does not POST, like with the original dump.
I don't know, whether the issue is actually in the "windows-key-section" or there is something else wrong.

I reflashed the clean BIOS and reprogrammed the S/N and Type/Model, so the machine is working again.
Also, Windows is still able to be activated, even though the Key is no longer present on the machine.

I will like the machine as it is now and say Thank you for all the help!