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Dell optiplex 5090 micro bios

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  • lorby
    commented on 's reply
    May I ask how you knew to change the hex value there to put it in manufacturers mode? I've compared to other dell bioses and can't work out any pattern

  • lorby
    replied
    Originally posted by danito

    try
    You're a genius! Worked straight away, thank you for your help!

    Leave a comment:


  • lorby
    commented on 's reply
    Thank you! Will give it a try

  • danito
    replied
    Originally posted by lorby
    Would anyone be able to help me with this one please. Dell optiplex 5090 micro, Old service tag was 3FZ9VH3 and I'm trying to change the service tag to 3EZ9VH3 (long story). I changed it in the 2 places I could find, which worked on the older Dells but this one still shows the original service tag.

    Thanks everyone!
    try
    Attached Files

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    Leave a comment:


  • lorby
    replied
    Would anyone be able to help me with this one please. Dell optiplex 5090 micro, Old service tag was 3FZ9VH3 and I'm trying to change the service tag to 3EZ9VH3 (long story). I changed it in the 2 places I could find, which worked on the older Dells but this one still shows the original service tag.

    Thanks everyone!
    Attached Files

    Premium supporters get full download access and other benefits.

    Leave a comment:


  • danito
    replied
    Originally posted by Rask1234
    service tag: DFBDDQ3
    Dell optiplex 5090 micro
    no boot, blackscreen, boots only sometimes, also bios password
    thanks!
    try
    Attached Files

    Premium supporters get full download access and other benefits.

    Leave a comment:


  • Rask1234
    started a topic Dell optiplex 5090 micro bios

    Dell optiplex 5090 micro bios

    service tag: DFBDDQ3
    Dell optiplex 5090 micro
    no boot, blackscreen, boots only sometimes, also bios password
    thanks!
    Attached Files

    Premium supporters get full download access and other benefits.

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  • mrrubik
    Dell Optiplex 7010 micro bad BIOS flash?
    by mrrubik
    Hi folks,

    I got a Dell Optiplex 7010 micro PC (Exact Model) with 8FC8 BIOS and locked out admin password. I attempted to remove the password by patching the BIOS via info from this thread: https://www.badcaps.net/forum/troubl...ssword-patcher
    After flashing the patched the BIOS, the PC is unresponsive with a solid AMBER power LED (not documented in manual anywhere)

    Steps I took:
    1. Read BIOS with CH341a, verified hash twice
    2. Patched
    ...
    12-23-2024, 04:11 PM
  • orizon
    Dell OptiPlex Micro Plus 7020 BIOS password removal
    by orizon
    Hi everyone,

    I need help clearing the BIOS master password on a Dell OptiPlex Micro Plus 7020.
    I have already extracted the 16MB dump using a CH341A Pro programmer and a SOIC8 clip. The NVRAM area seems to be encrypted.

    - Model: Dell OptiPlex Micro Plus 7020
    - Chip size: 16MB (128Mb)
    - BIOS Chip: Winbond 25Q128JV

    I've attached my original locked dump. Could someone please patch it or clear the password for me?

    Thank you so much in advance!...
    05-26-2026, 11:10 PM
  • Swatou
    Dell OptiPlex 3090 Micro – Clean SPI BIOS dump needed (password locked)
    by Swatou
    Hi everyone,

    I bought a used Dell OptiPlex 3090 Micro with a BIOS administrator password that I cannot remove. Dell support refuses to help without the original proof of purchase, and the seller is unreachable.

    I would like to try flashing the BIOS chip with a CH341A programmer, but I need a clean SPI BIOS dump for this exact model.

    Here are my machine details:

    Service Tag: 50P1BB3

    Express Service Code: 10925963391

    Form factor: Micro

    I can share my current BIOS dump (read with CH341A) for comparison if needed....
    03-24-2026, 11:25 AM
  • Supporte
    Dell Optiplex Micro Plus 7020 Help needed: BIOS Clean ME and BootGuard Disable
    by Supporte
    Dell Optiplex Micro Plus 7020

    Reg Model: D15U

    Service Tag: 8L0LG94

    Express: 18685049224

    Motherboard 232014-1 N25VK$HA

    Hi everyone,
    I'm facing a bit of a situation here and would appreciate some help from the experts.
    I received a unit that was BIOS password protected. Unfortunately, during the initial dump, there was a verification error that I didn't catch in time, resulting in a corrupted original file. I tried flashing another BIOS chip with a different dump, but the device is now a "no power/no display"...
    01-15-2026, 10:10 AM
  • Czat12
    Dell Optiplex Micro 7020 & Latitude 7430 Bios Admin Password Unlock
    by Czat12
    Hello,

    1.
    Dell Optiplex Micro 7020

    Reg Model: D15U

    Service Tag: 129LF54
    2.
    Dell Latitude 7430

    Reg Model:

    Service Tag: 8L0LG94


    I have 2 computers with admin password on BIOS. Standard code generators don't work on this new platform.

    I have dumped both SPI chips from the motherboard (16MB and 32MB). Could someone please help me remove the password or clean the ME Region?

    Attached are the original dumps. Thanks a lot for your help!
    04-08-2026, 02:57 PM
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