a1342 820-2567-A bios lock removal

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  • lordrussell
    Member
    • May 2015
    • 31
    • USA

    #1

    a1342 820-2567-A bios lock removal

    Greeting folks...

    Well, in true old fart fashion, it seems I have a client who put a boot lock (padlock on the initial boot screen) on his ancient Macbook. I've done the forum search & Google Ranger attack & have found nothing with regard to working/clean bios to redo the job.

    The original offloaded bios is attached. Hopefully, one of you code-reading/writing Gods can figure this one out for me.

    Thank you so much in advance. I just know there are many of you folks that just love 15 year old tech. (sarcasm, It drives me nuts having to re-learn everything. I swear I'm losing childhood memories...)
    Attached Files
    Last edited by lordrussell; 02-06-2023, 09:49 AM.
  • peste
    Super Moderator
    • Dec 2016
    • 12226
    • ROMANIA

    #2
    Re: a1342 820-2567-A bios lock removal

    Originally posted by lordrussell
    Greeting folks...

    Well, in true old fart fashion, it seems I have a client who put a boot lock (padlock on the initial boot screen) on his ancient Macbook. I've done the forum search & Google Ranger attack & have found nothing with regard to working/clean bios to redo the job.

    The original offloaded bios is attached. Hopefully, one of you code-reading/writing Gods can figure this one out for me.

    Thank you so much in advance. I just know there are many of you folks that just love 15 year old tech. (sarcasm, It drives me nuts having to re-learn everything. I swear I'm losing childhood memories...)
    try this..

    Change the RAM memory configuration (add or remove a RAM memory) and reset the PRAM three times in a row...
    Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

    >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

    Every donation made will go towards server fees and maintenance costs.

    Comment

    • lordrussell
      Member
      • May 2015
      • 31
      • USA

      #3
      Re: a1342 820-2567-A bios lock removal

      Thanks a bunch peste, I'll give it a try & report back here in a bit

      Comment

      • lordrussell
        Member
        • May 2015
        • 31
        • USA

        #4
        Re: a1342 820-2567-A bios lock removal

        Hey peste,

        Did as you recommended & that's a no-go at this station.

        I'm kinda open to absurd sollutions at this point...

        Comment

        • peste
          Super Moderator
          • Dec 2016
          • 12226
          • ROMANIA

          #5
          Re: a1342 820-2567-A bios lock removal

          Originally posted by lordrussell
          Hey peste,

          Did as you recommended & that's a no-go at this station.

          I'm kinda open to absurd sollutions at this point...
          see if you still have a bios chip on the board and post the content here
          Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

          >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

          Every donation made will go towards server fees and maintenance costs.

          Comment

          • lordrussell
            Member
            • May 2015
            • 31
            • USA

            #6
            Re: a1342 820-2567-A bios lock removal

            Peste

            I have the original bios uploaded on my original post. I'll attach here again in case that didn't work.

            Thanks again for your help
            Attached Files

            Comment

            • alfredposadas09
              Badcaps Veteran
              • Aug 2020
              • 342
              • Philippines

              #7
              Re: a1342 820-2567-A bios lock removal

              try this and update me
              Attached Files

              Comment

              • lordrussell
                Member
                • May 2015
                • 31
                • USA

                #8
                Re: a1342 820-2567-A bios lock removal

                Thank you alfredposadas09, I'll get word back to you ASAP.

                Comment

                • lordrussell
                  Member
                  • May 2015
                  • 31
                  • USA

                  #9
                  Re: a1342 820-2567-A bios lock removal

                  Hey alfred... just did the install & it didn't work for me. Have you got another rabbit in your hat?

                  Thank you

                  Comment

                  • lordrussell
                    Member
                    • May 2015
                    • 31
                    • USA

                    #10
                    Re: a1342 820-2567-A bios lock removal

                    Hey folks

                    I never got another response to this post that physically worked, so I went through another avenue & got this one that is completely clear and free.

                    THE ONLY THING IS - YOU MUST CHANGE YOUR SERIAL NUMBER using your favorite hax editor.

                    I know some other folks out there have been looking for this bios in particular.

                    It is literally for the A1342, 820-2567-A (notice the "A" in there). This, obviously, won't work on the same year Pro & to my knowledgeDoesn't work for the 820-2567 (no "A").

                    I hope this helps somebody.
                    Attached Files

                    Comment

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