DELL XPS 14 L421X - LA-7841P official BIOS update

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • 2informaticos
    New Member
    • Nov 2020
    • 5
    • Spain
    #1

    DELL XPS 14 L421X - LA-7841P official BIOS update

    I recently dealt with this machine and I post the SPI ROM and KBC ROM files extracted from official Dell BIOS update.
    Of course ME region is clean, as Dell serves full SPI ROM dump.
    Attached Files
    Tags: None
    • Rameez Ahmed
      Member
      • Apr 2023
      • 21
      • Dubai
      #2
      Hello

      xps L421X
      board number :- QLM00 LA-7841P REV 1.0

      PLEASE UNPASS
      Last edited by Vesko356; 01-13-2024, 10:19 AM. Reason: Bios removed. Start your own thread!

        Comment

      Previous template Next

      Related Topics

      Collapse
      • mikeybass
        Dell 9010 MT BIOS Update Always Fails
        by mikeybass
        Hi, I hope some one has some advice for me. I searched the forums but didn't see anything relevant. I acquired two identical Dell 9010 Mid Tower computers from a business office upgrade (they were going to throw them out). Both of them have the same motherboard (00F82W). One of them works flawlessly. The other one had a corrupted BIOS. I tried flashing numerous main BIOS and EC files from the internet, but none of them worked. I decided to copy the main BIOS and EC from the working 9010 computer and successfully flashed the corrupted BIOS. This got the computer able to boot again and run norm...
        04-23-2025, 04:30 PM
      • trix11
        Dell Precision T1650 MT Workstation bricked after BIOS update
        by trix11
        I have a Dell Precision T1650 MT workstation (of the following spec.) that was bricked yesterday when attempting to update the BIOS from A27 to A28 per:
        - https://www.dell.com/support/home/en...-t1650/drivers > Dell Precision T1650 System BIOS

        - Dell Precision T1650 mid tower Workstation
        - Xeon E3-1225 V2
        - 32Gb PC3-12800E RAM
        - 4Tb SATA HDD
        - motherboard: Dell part: 0C3YXR CN-0C3YXR-72200-39C-01GR-A02

        I see now that others have experienced like issues e.g.:
        - https://www.dell.com/community/Prec...
        10-24-2022, 10:35 PM
      • lalle-
        Dell G5 SE 5505 - "Invalid memory installed" after BIOS update.
        by lalle-
        Hello!

        I have a problem with a Dell G5 SE 5505 laptop that I hope someone can give me a few pointers on.
        [OK, it's not really a laptop, I'm running the motherboard on my desktop with only cooling, RAM and an M2 drive attached.]
        I had some performance issues, so I decided to update my BIOS from 1.7.0 to the latest version, 1.20.0.
        The computer restarted and the update dit not want to continue without a battery connected, even though I used dell's method of bypassing this requirement.
        I tried updating to a custom BIOS from Reddit user Satori_Nori https://www...
        08-11-2024, 02:01 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
      • 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...