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blkfry · (This post was last modified: 01-06-2017, 01:36 PM by blkfry.)

Hey,

I want to unlock all hidden options for this laptop, mainly to be able to change the HD520 default DVMT prealloc (can't change it using EFI shell via setup_var)
If it helps, the variable that needs changing is 0x180 to 0x20.

The bios ROM backup can be found here:
https://www.dropbox.com/s/pv6hsjtv7mg6l2...9.rom?dl=0

Please let me know if anything else is needed.

Thank you.

Dudu2002 · 01-06-2017, 04:48 PM

(01-06-2017, 01:35 PM)blkfry Wrote: Hey,

I want to unlock all hidden options for this laptop, mainly to be able to change the HD520 default DVMT prealloc (can't change it using EFI shell via setup_var)
If it helps, the variable that needs changing is 0x180 to 0x20.

Please let me know if anything else is needed.

Thank you.

Hi
Your bios chip is rewrite protected
Bios mod can be flashed using SPI-programmer+SOIC8 clip only

8105

(01-06-2017, 04:48 PM)Dudu2002 Wrote: Hi
Your bios chip is rewrite protected
Bios mod can be flashed using SPI-programmer+SOIC8 clip only

Hi, I have the same laptop B51-80 and the same request, unlock all menus in this bios. I also have an external SPI programmer used to wipe intel ME. Can you please explain how to do this and what I need? Really thank you. Rolleyes

PS:the BIOS is here: https://download.lenovo.com/consumer/mob...cn35ww.exe

Dudu2002 · 11-24-2017, 04:09 PM

(11-24-2017, 04:05 PM)8105 Wrote: Hi, I have the same laptop B51-80 and the same request, unlock all menus in this bios. I also have an external SPI programmer used to wipe intel ME. Can you please explain how to do this and what I need? Really thank you.

Hi
first use SPI-programmer+SOIC8 clip and make bios dump

kripat-96 · (This post was last modified: 10-14-2018, 06:29 AM by kripat-96.)

Hi, I need to unlock the bios for my Lenovo B51-80, to enable AHCI for my 850 Evo SSD. The current bios installed is InsydeH20 Rev. 5.0 (D7CN35WW (V3.08)), however there is no access to this setting, and I think it needs to be unlocked. Kind regards.

Dudu2002 · 10-14-2018, 07:22 AM

(10-14-2018, 05:57 AM)kripat-96 Wrote: Hi, I need to unlock the bios for my Lenovo B51-80, to enable AHCI for my 850 Evo SSD. The current bios installed is InsydeH20 Rev. 5.0 (D7CN35WW (V3.08)), however there is no access to this setting, and I think it needs to be unlocked. Kind regards.

Hi
Your bios is rewrite protected
Bios mod can be flashed using SPI-programmer+SOIC8 clip only

kripat-96 · 10-14-2018, 07:26 AM

(10-14-2018, 07:22 AM)Dudu2002 Wrote:
(10-14-2018, 05:57 AM)kripat-96 Wrote: Hi, I need to unlock the bios for my Lenovo B51-80, to enable AHCI for my 850 Evo SSD. The current bios installed is InsydeH20 Rev. 5.0 (D7CN35WW (V3.08)), however there is no access to this setting, and I think it needs to be unlocked. Kind regards.
Hi
Your bios is rewrite protected
Bios mod can be flashed using SPI-programmer+SOIC8 clip only

Hi, thanks for the help
Is there any way I could change the SATA interface to AHCI without doing this?

Dudu2002 · 10-14-2018, 07:55 AM

(10-14-2018, 07:26 AM)kripat-96 Wrote: Hi, thanks for the help
Is there any way I could change the SATA interface to AHCI without doing this?

follow the instructions
Check your PM

Zvitman · 05-22-2020, 04:25 AM

Hi, is it possible to unlock the advanced settings in this BIOS?
LENOVO-D7CN15WW(V1.01)

Dudu2002 · 05-22-2020, 07:11 AM

(05-22-2020, 04:25 AM)Zvitman Wrote: Hi, is it possible to unlock the advanced settings in this BIOS?
LENOVO-D7CN15WW(V1.01)

Hi
Need your bios dump

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