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820-4924-A need bios fixing

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    820-4924-A need bios fixing

    macbook was fine until catalina upgrade. now is starting but after 20 sec is turning off in normal mode or safe mode. i have tried other bios for 820-4924-A, now laptop is working but system is very very slow, that made me think that problem is bios related. Can someone check my bios for problems and hopefully fix it? tnx
    Attached Files
    Last edited by biber; 02-12-2020, 04:05 AM.

    #2
    Re: 820-4924-A need bios fixing

    Can you post both the BIOS dump that turns off after 20 seconds, and the one that works but is very slow?
    OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

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      #3
      Re: 820-4924-A need bios fixing

      Originally posted by piernov View Post
      Can you post both the BIOS dump that turns off after 20 seconds, and the one that works but is very slow?
      updated first post with both bios files

      Comment


        #4
        Re: 820-4924-A need bios fixing

        Try this.
        Attached is "820-4924-A slow.BIN" with clean ME and serial number from "820-4924-A catalina problem .bin"
        If you have problems, do 3x PRAM reset.
        Attached Files
        OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment


          #5
          Re: 820-4924-A need bios fixing

          Originally posted by piernov View Post
          Try this.
          Attached is "820-4924-A slow.BIN" with clean ME and serial number from "820-4924-A catalina problem .bin"
          If you have problems, do 3x PRAM reset.
          tnx, i will post results

          Comment


            #6
            Re: 820-4924-A need bios fixing

            Originally posted by piernov View Post
            Try this.
            Attached is "820-4924-A slow.BIN" with clean ME and serial number from "820-4924-A catalina problem .bin"
            If you have problems, do 3x PRAM reset.
            TNX Piernov, i did clean installation and mac is running like new.

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