Forum - RE: [Request] HowTo RollBack to an older HP Insyde BIOS

Win-Raid Forum (Drivers - Firmware - Modding) � BIOS Modding � BIOS Modding Guides and Problems � [Request] HowTo RollBack to an older HP Insyde BIOS

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#61 | RE: [Request] HowTo RollBack to an older HP Insyde BIOS datum

Wed Oct 13, 2021 9:47 pm

What program is used to see the hidden functions of each bios? I would like to try it

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#62 | RE: [Request] HowTo RollBack to an older HP Insyde BIOS datum

Tue Oct 19, 2021 2:36 am (Last edited: Tue Oct 19, 2021 2:37 am)

@sagael

I don't know, @Lost_N_BIOS done it for me (different laptop) some time ago with textual output of BIOS options so you can use efi shell to enable/disable without modding the BIOS (in some bios)

Link to the post:

ACPI mod request for vga Intel UHD Graphics 600 detection (3)

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#63 | RE: [Request] HowTo RollBack to an older HP Insyde BIOS datum

Thu Oct 21, 2021 8:25 pm

try this method at the time but without success as my current bios has no hidden option to modify igpu behavior

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#64 | RE: [Request] HowTo RollBack to an older HP Insyde BIOS datum

5 minutes ago

I don't like this bios.s12 file too. If I make modification to bios for example to update CPU microcode, this s12 file prevents to flash, it understands the file changed and stops bios update.

More in detail:

I have HP Pavilion - 15-cs3001nt it has the latest F.15 Rev.A dated Sep 22, 2021. It has microcode of cpu706E5_plat80_ver000000A6_2020-11-01_PRD_BC302391.bin in it. But, the latest is cpu706E5_plat80_ver000000A8_2021-05-26_PRD_5F2962F1.bin, I can not managed to find a way, I even tried HxD Hex editor but, after integrating the new one, date changes and the program understands that the image is not original.

Any ideas for this?

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[Need Help] Flashed Wrong BIOS to my Alienware Area-51 R2 �

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