Problems extracting from Dell Bios Update.Inspiron 3793

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Caimano
    Senior Member
    • Nov 2020
    • 54
    • Italia

    #1

    Problems extracting from Dell Bios Update.Inspiron 3793

    I am trying to repair a Dell Inspiron 3793 which has problems with start up, no battery charging and fan not running. I believe the Bios (probably the EC Region) is corrupted.
    The board is FDI45-LAJ091P REV 1.0 A00
    Processor i7 1065G7 with GPU
    This MB has 2 Bios Chips (one 8MB and one 16MB chip).
    I am trying to reload a new Bios with clean ME region, new main region and new EC region.
    I attach the dumps of the 2 chips.
    I successfully used ME analyzer to identify ME, PCH and PMC versions and used Flash Image Tool to install ME, PCH and PMC cleaned regions.

    I am having problems in extracting with DellPfsExtract the Main Bios region and EC region from the Dell update EXE file downloaded from Dell's site.
    I tried different versions of DellPfsExtract.exe (from 3.6 to 5.1) but with all of them it says "Done! " but no folder is created. Python is installed and working fine also with ME Analyzer.
    Can somebody help or try to extract files from update executable? Thanks
    Attached Files
  • hoaca388
    Badcaps
    • Jan 2022
    • 12237
    • Socialist Republic of Vietnam

    #2
    Re: Problems extracting from Dell Bios Update

    Here
    Attached Files
    Last edited by hoaca388; 05-04-2022, 11:38 AM.


    Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
    https://www.badcaps.net/donate

    Comment

    • Caimano
      Senior Member
      • Nov 2020
      • 54
      • Italia

      #3
      Re: Problems extracting from Dell Bios Update

      Originally posted by hoaca388
      Here
      Thanks for your help! I spent hours trying to extract the files, but could not make it. I launched Dell_PFS_extract.exe, a new windows opened asking to enter the path of the exe file, dragged and dropped the file, pressed enter, Done!, but no new folder was created.

      Any idea what could be the problem?

      Comment

      • hoaca388
        Badcaps
        • Jan 2022
        • 12237
        • Socialist Republic of Vietnam

        #4
        Re: Problems extracting from Dell Bios Update.Inspiron 3793

        Drag ang drop exe bios file to Dell_PFS_Extract file


        Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
        https://www.badcaps.net/donate

        Comment

        Related Topics

        Collapse

        • JoWed
          Problems with reflashing BIOS Chip on omen by hp laptop 17 an104ng
          by JoWed
          Hello Community,

          I recently tried to change the Batterie on my Omen by HP Laptop 17 an104ng and after putting in the new batterie ([Batterie Link](https://www.amazon.de/7xinbox-17-AN0...&keywords=16%2...
          07-01-2025, 09:32 AM
        • grimacelord
          Latitude E6530 - Trouble Extracting BIOS Image From EXE
          by grimacelord
          Hi folks,

          I'm having a hard time extracting this Dell BIOS. I have a Dell Latitude E6530 that has BIOS corruption and I need to reflash with CH341A programmer. I have already taken dumps of both the 4MB and 8MB chips on the motherboard.

          Service tag number for this model is: "JYDWYW1".
          Link to latest BIOS for this Service Tag: https://dl.dell.com/FOLDER05371360M/1/E6530A22.exe

          I have tried:
          • Simply extracting with 7zip
          • PFSExtractor
          • Using "/writeromfile, /writehdrfile, and /writehexfile" commands
          • Check Temp folder
          ...
          10-26-2023, 08:15 AM
        • Lexsmash85
          Bricked bios from a legion y540-15irh (81sx) . Needing dmi/clean me region maybe
          by Lexsmash85
          Edit: apologies, I only need help with the DMI info.. I thought the ME region would need attention in order to recover from bricked state but maybe I misunderstood.

          Im a novice to this experience but in short, I performed a backlash from the latest and final bios firmware BHCN45WW to BHCN26WW hoping that would solve an issue with keyboard functionality failing after an update. Ended up hanging during flash process and then system would no longer POST on reboot.

          USB recovery process didn't seem to take. So today I successfully managed to get the BIOS dump from my machine...
          08-06-2025, 03:41 AM
        • 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
        • Jockel
          BIOS problems, cannot start.
          by Jockel
          Question for the technicians
          Error during boot. No hard drive, no USB boot possible. BIOS opens normally, all media are displayed. I have tried everything and cannot access the hard drive via boot installation media, e.g. USB Win 11. The system simply stops and the screen remains dark. I reset everything to factory settings in the BIOS menu using the F9 and then F10 keys in order to perform a new installation, e.g. Win 11. The hard drives are clean and formatted with NTFS.
          The USB and hard drive boot on other devices, but not on this notebook.
          All USB drives and hard drives are...
          09-29-2025, 10:50 AM
        • Loading...
        • No more items.
        Working...