Lenovo T490s bios password request.

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • OntarioTL
    Senior Member
    • Feb 2022
    • 51
    • Canada

    #61
    Originally posted by volinakis

    AA553F -enabled
    AA553C -disabled
    remove CMOS battery, that's why you weren't able to disable Absolute from bios setup. At 1st boot enter bios setup Security-Absolute (somemtime Computrace) and permanently disable it.

    Thanks Volinakis, I will follow your recommendations. I'm sure it will work like the last one.

    This was where I am puzzled as I looked at the original BIOS file through HxD and what I though was the enable and disable for AbtState, but it already has AA553C instead of AA5533F. I thought this was for another option that was mixed in. Under UEFItools it showed it as it should so this is why I was getting a headache.

    Alright, after examining your screenshot, I gave HxD a shot again. With the search I should have used the "search all" feature which gave me 4 results. One of them had the AA5533F. This was probably one I should have tended to when I attempted to do the fix myself. Like they say, it's hard to teach an old dog new tricks.

    Thanks again!
    Attached Files

    Comment

    • unleadedblues
      New Member
      • Apr 2019
      • 6
      • us

      #62
      Request to clean bios password.

      Lenovo T490S
      SN: MJ-0DEGNB
      Type: 20NX-S2UC00
      Motherboard: FT491/FX390 NM-B891 Rev: 2.0

      Dump of (U2101) - MXIC MX 25L25673G

      Tried Lenovo AutoPatcher but laptop just beeps on boot with patched file
      Attached Files

      Comment

      • techrecycle
        Senior Member
        • Jan 2024
        • 51
        • england

        #63
        please help me to remove bios password



        sr:PC-1B48JH
        Attached Files

        Comment

        • arence20
          Member
          • Dec 2016
          • 19
          • philippines

          #64
          any one can help bios password or supervisor password
          T490s FT491/FX390 NM-B891 rev;2.0
          S/N ;PC18XVK8
          MODEL; 20NYS6KV00
          THANK YOU
          Attached Files
          Attached Files

          Comment

          • arence20
            Member
            • Dec 2016
            • 19
            • philippines

            #65
            Originally posted by arence20
            any one can help bios password or supervisor password
            T490s FT491/FX390 NM-B891 rev;2.0
            S/N ;PC18XVK8
            MODEL; 20NYS6KV00
            THANK YOU
            Attached Files
            help

            Comment

            Related Topics

            Collapse

            • 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
            • RMDUiFT
              Should I buy a Lenovo Thinkpad E495 with bios password?
              by RMDUiFT
              Good day. I apologize if I posted this in the wrong topic. I saw somebody selling a Thinkpad E495 with a Ryzen 3500U CPU near me. In the pictures the laptop is running windows 10. I contacted the seller and asked a few questions about upgradability and if it has a bios password on it. He confirmed it has a bios password. I searched through the forum, I found a guide regarding removing the bios password using the autopatcher, I also found a thread with the e495 where people requested help with unlocking the bios password.

              I have a few questions:
              • If I would buy this laptop and have
              ...
              08-25-2024, 09:00 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
            • 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
            • baaligoga
              Help needed in unlocking BIOS Supervisor password - Lenovo X1 Yoga 5th Gen
              by baaligoga
              Good day, everyone!

              I'm encountering an issue with my Lenovo X1 Yoga 5th Gen laptop related to the BIOS supervisor password. I'm seeking assistance and guidance from the knowledgeable members of this community in resolving this problem.

              I am no expert and cannot perform soldering or unsoldering of the chip from the board. Therefore, I attempted to use an EZP 2023 programmer with a clip to extract the BIOS bin file without removing the BIOS chip from the motherboard. The BIOS chip has the following letters imprinted on it: "Winbond 25Q80DVNIG 2026". I used the...
              05-20-2023, 09:48 AM
            • Loading...
            • No more items.
            Working...