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#1 | [SOLVED] Acer E5-571-5474 bios mod datum

Sun Aug 25, 2019 3:58 pm (Last edited: Sun Aug 25, 2019 5:31 pm)

Hello guys,

I'm trying to unlock the advanced options menu in my bios (but it would be nice to improve it further if possible). My system is:

Laptop: Acer E5-571-5474
MB: EA50_HB
BIOS : Insyde ver. 1.32
ID: Z5WAH

I got the bios from the fptw64.exe tool (version 9.5.40.1868), but I don't know how to further proceed nor what tools to use to modify the .bin file.

Any help would be greatly appreciated. Thanks!

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#2 | RE: Acer E5-571-5474 bios mod datum

Sun Aug 25, 2019 5:22 pm

I've somehow managed to mod the bios and unlock the Advanced menu. Credit goes to @Lost_N_BIOS. Thanks!

All I had to do was extract this section "Section_PE32_image_DriverSampleDxe_SetupUtility_body.efi' using the UEFITool and edit with a hex editor like this:

Zitat von Lost_N_BIOS im Beitrag Acer E5 571G 51DS Bios Unlock
Here's the actual edit done on the BIOS above
Section_PE32_image_DriverSampleDxe_SetupUtility_body.efi
00000000000014A9: D5 >> Change to >> 00
00000000000014DD: A1 >> Change to >> 00

Then using the UEFITool again (version 0.21.5) I replaced the original with the modded one and then saved the .bin file.

To flash it I used the fptw64.exe tool, and in this part I was trembling with fear of bricking my one and only computer, but thankfully everything went ok. Cheers!

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