need bios for 820-2507-A A1312 (EMC 2309)

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • rookieme
    Badcaps Veteran
    • Oct 2014
    • 396
    • Greece

    #1

    need bios for 820-2507-A A1312 (EMC 2309)

    I need a working bios in order to test my no power on problem.
    Thank you
  • techman1025
    Badcaps Veteran
    • Jun 2014
    • 497
    • United States

    #2
    Re: need bios for 820-2507-A A1312 (EMC 2309)

    Hi
    Here is a working file and you could use it for testing ..but it will be dirty Me region to leave in you will have problem's so after if you need it fixed upload your original file and i will do it all for you even SSN#
    Techman1025
    Attached Files

    Comment

    • cyberhack
      Badcaps Veteran
      • Feb 2013
      • 466
      • Uk

      #3
      Re: need bios for 820-2507-A A1312 (EMC 2309)

      Have a look here to help
      How to Set a Clean ME Region in Apple EFI

      https://ghostlyhaks.com/blog/apple-e...lean-me-region

      Comment

      • GIFixed
        Senior Member
        • Sep 2019
        • 61
        • Denmark

        #4
        Re: need bios for 820-2507-A A1312 (EMC 2309)

        Originally posted by cyberhack
        Have a look here to help
        How to Set a Clean ME Region in Apple EFI

        https://ghostlyhaks.com/blog/apple-e...lean-me-region
        EMC 2309 A1312 Core2 Duo does NOT have ME region?

        It is not EFI?

        If you drop the BIOS bin file on ME analyzer, it says: "File does not contain Intel Engine firmware"

        If it really does have ME region and ME firmware, how do we clean ME region in this model?
        Last edited by GIFixed; 12-03-2019, 05:10 AM.

        Comment

        • piernov
          Super Moderator
          • Jan 2016
          • 4435
          • France

          #5
          Re: need bios for 820-2507-A A1312 (EMC 2309)

          No there's no ME region on Core 2 Duo machines, no need to clean it. You only have to change serial number and fix Fsys checksum.
          OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

          Comment

          • pulgagr
            New Member
            • Aug 2018
            • 3
            • usa

            #6
            Re: need bios for 820-2507-A A1312 (EMC 2309)

            Hi,
            Can someone help me cleaning the password firmware from this file?

            It is a iMac A1312 EMC 2309.

            Thanks
            Attached Files

            Comment

            • piernov
              Super Moderator
              • Jan 2016
              • 4435
              • France

              #7
              Re: need bios for 820-2507-A A1312 (EMC 2309)

              Change RAM configuration and do 3x PRAM reset.
              OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

              Comment

              Related Topics

              Collapse

              • 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
              • jbonavita
                ASUS TP500LA BIOS request/repair/merge?
                by jbonavita
                Hi, my laptop wont boot at all
                With original bios no POST, only LED lights
                With alternative BIOS from model TP500LN (flashed via programmer) the notebook works again
                Some issues
                A- with bios from 500LN, it won't update from bios of model 500LA (from 500LN v203 to 500LA v300)
                B- If updated from 500LN version 203 to 300, the battery stops being recognized

                Things I tried

                1- Update / clear ME: Took the non working bios, made a backup, and did this: https://www.badcaps.net/forum/troubl...theory/trouble...
                04-29-2025, 09:38 PM
              • 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
              • Bloodhoundje
                HP Pavilion Gaming Laptop 15-ec2523nd - Dimm2 slot disabled after corrupt bios repair? Advice requested.
                by Bloodhoundje
                Hi everyone,

                I have been doing hardware repair as a hobby for some years now and recently decided to learn about repairing laptops as a fun challenge.

                I managed to get my hands on a "HP Pavilion Gaming 15-ec2523nd" notebook that only shows a white power LED and doesnt respond to anything.

                After initial testing I concluded the bios seems to be corrupted since all voltages are normal and there are no shorts. HP has a feature for a bios restore from USB with winkey+B for this model. This did not work.

                I have desoldered the bios chip (GigaDevice...
                03-16-2024, 03:12 PM
              • TraJikar Mac
                [HELP] G712LWS BIOS capsule
                by TraJikar Mac
                I need someone that can capsulate one of the bios files below, and i prefer the older bios version so i can flash it using CH341A tool into the bios chip.
                The manufacturer BIOS files are bigger than the BIOSbackup1.bin files by 256KB and I don't know how to fix or recompile it.

                You can see in this link a conversation between me and other people (Starting at page 10) who tried to help me (thanks to their efforts), but i still couldn't fix it and the laptop is considered as dead until now.

                Also, I uploaded a backup file for the bios that I extracted by using CH341A...
                06-11-2025, 01:35 PM
              • Loading...
              • No more items.
              Working...