Please clear me bios 820-3115-b

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  • biber
    Senior Member
    • Feb 2015
    • 104
    • macedonia

    #1

    Please clear me bios 820-3115-b

    Please clear me bios
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  • digitalpc
    Badcaps Veteran
    • Jun 2016
    • 305
    • .DLL

    #2
    Re: Please clear me bios 820-3115-b

    Originally posted by biber
    Please clear me bios
    try this...
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    • Ghamidi
      Badcaps Veteran
      • Mar 2020
      • 305
      • France

      #3
      Re: Please clear me bios 820-3115-b

      try...
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      • gabo5x
        Member
        • Dec 2022
        • 18
        • Brazil

        #4
        Hello can someone give me a light here.
        I have this 820-3115B board that was tuning on but blinking 5 times at the power indicator light.
        All voltages OK so i checked SPI ROM (BIOS) chip.
        Replaced it with chip from donor board same model and now the board turns on and boots, but takes a long time to boot.

        I tryed a different bios that i found online and with my HD, it boots fine and fast enough, but it wont recognize client's SSD. With the first bios I tryed, it does reconize it, but slow boot.

        Anyone can help me with this one? Maybe it has a patch to run a newer OS that is not present on the BIOS that boots fast? I really don't know.

        Macbook Pro A1278 (2012)
        Board: 820-3115B
        Serial Number: CPWMJ53DDTY3

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        • peste
          Super Moderator
          • Dec 2016
          • 13422
          • ROMANIA

          #5
          Originally posted by gabo5x
          Hello can someone give me a light here.
          I have this 820-3115B board that was tuning on but blinking 5 times at the power indicator light.
          All voltages OK so i checked SPI ROM (BIOS) chip.
          Replaced it with chip from donor board same model and now the board turns on and boots, but takes a long time to boot.

          I tryed a different bios that i found online and with my HD, it boots fine and fast enough, but it wont recognize client's SSD. With the first bios I tryed, it does reconize it, but slow boot.

          Anyone can help me with this one? Maybe it has a patch to run a newer OS that is not present on the BIOS that boots fast? I really don't know.

          Macbook Pro A1278 (2012)
          Board: 820-3115B
          Serial Number: CPWMJ53DDTY3
          post EMC, post the original bios of the laptop even if it is corrupted..I hope you still have it...or is it the one posted above??
          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.

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          • gabo5x
            Member
            • Dec 2022
            • 18
            • Brazil

            #6
            Originally posted by peste

            post EMC, post the original bios of the laptop even if it is corrupted..I hope you still have it...or is it the one posted above??
            Hey thank you for your response!
            It doen't really say the EMC number on bottom cover.

            Here's the bad bios

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