Help me reflash dead BIOS on Aspire 4752Z MS2347

Lxverbxy56
Lxverbxy56 Member Posts: 2 New User
I've been working on to flash BIOS on this laptop for two weeks now with no lucks. I'm asking for anybody who had experience in flashing BIOS to guide me through this process. I accidentally corrupt my colleague BIOS when i try to update his laptop to Windows10 21H1, the progress stays on 0% while installing for a long time before i actually decide to turn the laptop off, which is a bad decision i know. Currently the AS4752Z stuck on BIOS loading screen with 75%, i can't get into BIOS setup screen as the BIOS didn't respond when i tap F2 key. Been trying WinCrisis method with FN+ESC for some time now, i'd download different version of wincrisis hoping that it would help but no, it didn't. My usb flash drive will flashes three times everytime but failed to flash the BIOS. I'd done this with and without HDD connected. Even try running WinCris.exe in Windows XP VHD environment, manage to get my hands on 512kb bin file which i edit from wph file with Hex Editor but i can't find flash BIOS with bin file anywhere on google. I'll appreciate any helps now as i starting to lose my way. Extra notes: on my D630 Win10 x64 laptop, it reads my 1gb flash drive which is E: including a partition writes floppy disk (A:) and i don't know how to delete this A: drive as it didn't show up in WMIC or DISKPART, i can format and write in it like a normal drive but that's it, its sizes is 1.44mb. Even try replacing my 512kb bin file to bios.wph through wincris with this floppy drive but nothing works, again i will appreciate any kind helps ;)

i use both BIOS files 1.24 and 2.15 from here https://www.acer.com/ac/en/ID/content/support-product/3941?b=1

Answers

  • Easwar
    Easwar Member Posts: 6,727 Guru
    Hi Lxverbxy56,

    In the BIOS information page is the unit HDD is showing. ​
  • Lxverbxy56
    Lxverbxy56 Member Posts: 2 New User
    edited August 2021

    Easwar said:
    Hi Lxverbxy56,

    In the BIOS information page is the unit HDD is showing. ​
    No sir, it only shows the 75% progress bar and a phoenix logo on bottom right in the BIOS page