[Request] Unlocked Acer AG14-71M BIOS via SREP Patch

Road-Drum · August 10, 2025, 5:53am

Hi, can someone help to make SREP patch for my Acer AG14-71M? This Acer laptop is quite peculiar, where the BIOS uses AMI instead of Insyde. I don’t have time to learn to craft my own patch and the github guide seem to require experience in BIOS modding

The goal is to access hidden advanced option as I want to do the following:
1- Tweak turbo ratio for P and E core
2- Disable hyperthreading
3- Maybe disable some of P and E core. This laptop fan can’t really handle 14 core

The BIOS upgrade tool obfuscates the BIOS file, which is why I am unable to provide the BIOS

BIOS link: https://global-download.acer.com/GDFiles/BIOS/BIOS/BIOS_Acer_1.05_A_A.zip

Feel free to add the SREP patch to github as well

Edit by Fernando: Thread title shortened

Sweet_Kitten · August 10, 2025, 7:03am

Hello.
I’ll make a config if you add a photo of any setup page.

Road-Drum · August 10, 2025, 9:20am

here is the screenshot of the BIOS page

Sweet_Kitten · August 10, 2025, 4:01pm

Here Acer AG14-71.zip (463.8 KB)

Disable secure boot. 2. Unpack the archive to a flash drive and boot from it.
Efi shell will try to add SREP to “boot order”.
Check if status message indicates that a new driver entry added successfully.
If everything up to this step went well, try rebooting your pc and entering bios. Now it shouldn’t enter instantly. Expect SREP running first. After this, Advanced should become available.
Unplug the usb and delete the entry (optional).

Let me know if it works.

Road-Drum · August 10, 2025, 10:06pm

Thank you. I will test this after work. Will let you know the results

btw how did you manage to extract the BIOS from the exe? I tried using 7zip and even running the tool but still can’t get the image

Sweet_Kitten · August 11, 2025, 12:59am

Extracted with AMIUCP exe.

Road-Drum · August 11, 2025, 2:47pm

Stupid question, do I need to format my USB stick to FAT32 or mark the exFAT bootable? already disabled secure boot and fast boot, changed USB port but still not detected in boot options

Road-Drum · August 11, 2025, 4:12pm

Seems I could add it to driver entry, but booting still as fast as before. Already disabled secure boot and fast boot but Advanced option still does not appear

Sweet_Kitten · August 11, 2025, 4:44pm

I see KingstonDataTraveler. Is that not it?

Is there a separate boot menu on F12 hotkey? Does it have Enter Setup option?

Road-Drum · August 11, 2025, 6:03pm

For whatever reason spamming F12 won’t make the boot option appear like regular Acer laptop

I have rearranged boot order to boot with USB stick first.

I could briefly see something is being loaded (too fast to capture with phone) before the SREP add script being run again.

maybe i could go back to setup using EFI shell command at this stage. I vaguely recall such command exist back then

Sweet_Kitten · August 12, 2025, 1:30pm

This is probably efi shell mapping table.

“Go back”? So you somehow loaded usb stick from bios setup? There’s Exit command. It won’t get you to setup screen, but 1 step back, which is OS boot.

I think the patcher not even starts. I’ll try to find the correct key for BBS popup (aka F12 menu)…

Road-Drum · August 13, 2025, 4:04am

Could be the way that I format my Flash drive wrong. How I formatted my Flash drive for SREP:

Regular exFAT/NTFS via Windows Disk Formatter and placed the zip content. BIOS won’t boot to the Flash drive
UEFI NTFS via rufus. It created two partitions, 1MB FAT for its own BOOTX64.efi binaries and NTFS partitions which I placed the zip payload.

Let me know if there is a better way to format the Flash drive for the payload. I can see some error/warning message yesterday when booting the Flash drive, will try to get the error message again

Sweet_Kitten · August 14, 2025, 2:30am

No luck. Though I found text string “Entering Boot Menu”, there’s none which would indicate which button needs being pushed. I think it doesn’t exist.

IMO, the best is windows formatter.