BIOS Unlock potential - T540p ?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Acnologia
    Badcaps Veteran
    • Dec 2016
    • 428
    • Poland

    #1

    BIOS Unlock potential - T540p ?

    Hello to all,

    I have in my hands a T540p , that i would like to unlock the full pottential of the bios , such as hidden options and wifi whitelist etc.

    Which of the 2 chips should i dump ?

    Thank you.
    Attached Files
  • danito
    Badcaps Legend
    • Jun 2016
    • 1070
    • Romania

    #2
    Originally posted by Acnologia
    Hello to all,

    I have in my hands a T540p , that i would like to unlock the full pottential of the bios , such as hidden options and wifi whitelist etc.

    Which of the 2 chips should i dump ?

    Thank you.
    L32 = 4mb

    Comment

    • Acnologia
      Badcaps Veteran
      • Dec 2016
      • 428
      • Poland

      #3
      Originally posted by danito

      L32 = 4mb
      Amazing. Thank you

      Comment

      • Acnologia
        Badcaps Veteran
        • Dec 2016
        • 428
        • Poland

        #4
        Done.
        Is it possible that anyone can modify and unlock the bios advanced etc. ?

        Thank you
        Attached Files

        Comment

        Related Topics

        Collapse

        • lucaszmn
          Summary of BIOS Whitelist Removal Problem Lenovo Thinkpad T560
          by lucaszmn


          Summary of BIOS Whitelist Removal Problem


          Problem:
          I am attempting to remove the WWAN card whitelist from my Lenovo ThinkPad T560.
          Initial Findings:
          • My current BIOS version is N1KET58W (1.45).
          • I have a CH341A programmer and have successfully created two full backups of my BIOS.
          • I have the ability to use command-line tools on a Linux machine.
          Troubleshooting Steps & Conclusions:
          • I attempted to use several automated and manual patching methods on my N1KET58W (1.45) BIOS, including using hex strings. These attempts all failed.
          • I concluded that the
          ...
          08-12-2025, 03:01 PM
        • 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
        • macabook
          🛠️ MSI GP75 Leopard MS-17E71 – No Display, Deep BIOS/EC Troubleshooting
          by macabook
          Hello everyone,

          I’m currently working on a dead MSI GP75 Leopard (MS-17E71) motherboard (i7 CPU, NVIDIA GPU) with a no display/no backlight issue initially. After extensive investigation, I’m at a critical stage involving EC firmware, BIOS/ME region interaction, and possible deep corruption. I'm seeking advanced insight from anyone with experience in EC/BIOS sync issues or PCH-level behavior. Here’s a full breakdown:
          🧩 Initial Issue
          • Board powers on (fans spin, keyboard lights up and can be adjusted, caps lock led lights), but no display or backlight
          • External display (HDMI) shows
          ...
          07-24-2025, 02:17 PM
        • helpmepleasethanks
          Thinkpad T440P bios repair after WIFI whitelist mod
          by helpmepleasethanks
          As per the the rules, here are the specifications of my laptop :
          • Make and model number : Thinkpad T440P
          • Serial number (S/N) : PB-03A7V7
          • Model type - Model (MTM) : 20AW-S2N800
          • Bios version : 2.50 (not 100% sure, that's what I remember)
          Here is the problem, and the events leading to it :
          1. Upgrade screen, keyboard, trackpad, RAM and CPU
          2. Reboot and use the laptop for a bit : everything is working fine
          3. Shutdown (no power) and upgrade WIFI with unsupported chip (AX210)
          4. Boot up the device : bios warning, as expected
          5. Shutdown the device again (no power)
          6. Connect the 8-pin clip of a CH341a
          ...
          01-09-2025, 12:09 PM
        • Akhlz001
          Dell Pro 13 Plus PB13250 Bios Unlock
          by Akhlz001
          Hi,

          Could someone help trying to unlock this BIOS, seems that Dell have changed the layout of new Dell Pro 8FC8 bioses from checking HXD - 4000 bits do not need changing, only 2000. However after FF the section starting from '01000' upto 2000 bits and then soldering the chip back it seems that the microchip on the motherboard is recovering the bios back to original settings after first boot. Has anyone found a way to crack this extra layer of security Dell have implemented? Seems both HP and Dell have upped bios security to match Lenovo by implementing extra measures on a separate...
          09-20-2025, 07:15 PM
        • Loading...
        • No more items.
        Working...