Flashing bios of Acer 4752G laptop.

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biosprob
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Joined: 10/10/2015

I'm attempting to flash a bios of an Acer 4752G via a USB drive formatted to fat32.

I've downloaded this file here, and extracted it to the usb drive, maintaining the folder structure - http://global-download.acer.com/GDFiles/BIOS/BIOS/BIOS_Acer_1.24_A_A.zip?acerid=634921025155312677&Step1=NOTEBOOK&Step2=ASPIRE&Step3=ASPIRE%204752G&OS=ALL&LC=en&BC=ACER&SC=...

I've plugged the USB drive in, and holding down fn + esc I turn the laptop on. All the laptop lights turn on as usual, but the screen remains off. After a while I give up and power off the laptop. Booting it up again, I'm still unable to access the bios via F2 - GRUB loads immediately and I can still access Trisquel.

These forums mention different things, but as a newb, I'm not entirely sure what they're talking about. In the downloaded file, I can't see any .fd files. Apparently I might need to rename some files.

http://community.acer.com/t5/Legacy-Laptops-and-Netbooks/My-Acer-Aspire-4752G-laptop-does-not-boot-up-after-bios-update/td-p/320042

http://community.acer.com/t5/2014-Archives/black-screen-flash-bios-V5-571/m-p/250070#M8216

Any suggestions?

loldier
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Joined: 02/17/2016

I think they should all be in the root directory -- no subdirectories. You'll only need what's in /DOS. Copy those files to the USB key. Then again, there's very little information from Acer to rely on -- their documentation is as a rule sub-par. It's shooting at random hoping to hit the target. It's possible to brick the laptop if it's not right from the start.

I saw another combination Alt+Esc. If Fn+Esc fails, try the other one. Some posts mention a sequence 'Fn+Esc power on' [if power led blinks] press power button again briefly.

http://freecomputer-solution.blogspot.com/2011/05/how-to-flash-acer-aspire-one-bios.html

Most suggestions involve the use of Wincris.exe for Phoenix BIOS. It should tell you how to rename the BIOSsomething.WPH file. Tricky if you don't have Windows installed.

https://www.bios-mods.com/bios-recovery/phoenix-bios-recovery/

http://www.theeldergeek.com/forum/index.php?showtopic=44591

biosprob
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Joined: 10/10/2015

Thanks for the extra info.

What a nightmare. I'd rather not brick my laptop. It still currently works, it's just that I won't be able to install any other new operating systems on it from scratch.