Question about bios failure

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • motanya
    Senior Member
    • Nov 2021
    • 158
    • Kenya

    #1

    Question about bios failure

    I have been really thinking about laptops and bios to be specific, according to my own analysis windows based pcs have a high likelihood of bios failing than MacBook's. Are manufacturers aware of the issue? If they are why don't they make it easier for any pc owner to revive their pc in case there is a bios failure.
    2nd, cleaning me region: how does a bios become dirty to a point it needs cleaning, how fragile is it?

    Another question regards laptops that are okay, completely fine but when you connect charger or try to switch it on it plays "dead", if you take out cmos battery and the battery for a few 2nds and reconnect them, all of sudden it now works, meaning nothing was wrong all the ics are okay, Mystery!?
  • stj
    Great Sage 齊天大聖
    • Dec 2009
    • 30930
    • Albion

    #2
    Re: Question about bios failure

    ME is spyware running through a seperate microcontroller - in theory if it's writing anything when power goes out the bios gets corrupted.
    another modern problem is fucking windows trying to background-upgrade bioses.
    you should NEVER flash a bios with windows running - only from dos using a usb bootdrive.

    Comment

    Related Topics

    Collapse

    • Vesko356
      [Guide] How to find the right HP bios version to flash
      by Vesko356
      First of all thanks to all of our members who have posted previously all methods posted here.
      Please leave a comment if you find something new,or have anything else to add.
      -----------------------------------------------------------------------------------------

      Find by serial number,model number or series

      If you know the laptop serial or model number go to HP support https://support.hp.com/us-en/drivers/laptops .
      Enter the serial number or model number and click submit.On the next screen you will have to enter the OS
      Operating system and OS version.If...
      08-11-2023, 03:27 AM
    • zenius
      [REQUEST] Dell G3 3579 BIOS Password & AMI Protected Range/BIOS Guard Unlock
      by zenius
      Hello, I have an old Dell G3 3579 (ST: 2WQ7LP2-8FC8) with a newer 8FC8 BIOS password. I have successfully attached to the flash chip (W25Q128JVSQ) on the motherboard with a CH341A programmer and made several modifications using Intel FIT (e.g., allow software SPI write) without bricking. I was also able to boot to a modified GRUB shell where I attempted to edit many BIOS security related options like BIOS Guard/Lock, Flash Signature Override, ME FW Image Re-Flash, etc.

      Unfortunately, some of these modifications like to Intel BIOS Guard failed because it is fused into the PCH. Also,...
      12-08-2024, 06:13 AM
    • Wahaz
      Lenovo Thinkbook 15 G2 ITL i5 (serial number: MP2BFZEF) bios request
      by Wahaz
      Hello,

      I have a Lenovo Thinkbook 15 G2 ITL i5 Laptop (serial number: MP2BFZEF) that when I turn it on, the led on the power button lights up for 5 seconds, then goes out. There's no display and nothing happens.
      So I thought it was a Bios problem.
      I found 3 bios chips on the board, which I read with a bios programmer: two XMC model bios chips and a Winbond model bios chip. Each XMC model bios chip has two partitions named XM25QH128A [3.3V] and XT25F128A [3.3V]. And the Winbond model bios chip has three partitions named W25Q80BL 3.3V, W25Q80xV 3.3V and W25Q80DV 3.3V....
      10-30-2023, 08:42 PM
    • Bloodhoundje
      HP Pavilion Gaming Laptop 15-ec2523nd - Dimm2 slot disabled after corrupt bios repair? Advice requested.
      by Bloodhoundje
      Hi everyone,

      I have been doing hardware repair as a hobby for some years now and recently decided to learn about repairing laptops as a fun challenge.

      I managed to get my hands on a "HP Pavilion Gaming 15-ec2523nd" notebook that only shows a white power LED and doesnt respond to anything.

      After initial testing I concluded the bios seems to be corrupted since all voltages are normal and there are no shorts. HP has a feature for a bios restore from USB with winkey+B for this model. This did not work.

      I have desoldered the bios chip (GigaDevice...
      03-16-2024, 03:12 PM
    • TraJikar Mac
      [HELP] G712LWS BIOS capsule
      by TraJikar Mac
      I need someone that can capsulate one of the bios files below, and i prefer the older bios version so i can flash it using CH341A tool into the bios chip.
      The manufacturer BIOS files are bigger than the BIOSbackup1.bin files by 256KB and I don't know how to fix or recompile it.

      You can see in this link a conversation between me and other people (Starting at page 10) who tried to help me (thanks to their efforts), but i still couldn't fix it and the laptop is considered as dead until now.

      Also, I uploaded a backup file for the bios that I extracted by using CH341A...
      06-11-2025, 01:35 PM
    • Loading...
    • No more items.
    Working...