MacBook 820-2213-A location of EFI SPI chip

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  • pfrcom
    Oldbie
    • Jun 2006
    • 1230
    • Australia

    #1

    MacBook 820-2213-A location of EFI SPI chip

    My MacBook A1181 EMC 2139 bricked itself

    Had it dual-booting Snow Leopard and MX Linux 19.3

    Did a few Snow Leopard updates, culminating in EFI 1.1 update I think it was

    Followed instructions to shut down from the update screen, then press & hold power button until the light started flashing and a tone sounded

    Then it seemed to start the update OK, although progress bar was increasing at a glacial pace

    So I left it going, and returned to find it booted into MX

    Did a restart from MX, after which nothing - neither startup chime nor anything on the screen

    Tried PRAM reset, also holding down power button again, to no avail - latter makes light start flashing, but then nothing

    And Firmware Restoration CD 1.4 doesn't work - perhaps because the questionable DVD drive can't read a rewriteable CD

    I can't even eject the CD by holding down trackpad button at power on - the MacBook starts without startup chime or anything on screen, and seems not to respond to the keyboard

    So I reckon my only remaining option is rewrite firmware from a 2MB .FD file extracted from the restoration CD's dmg

    But I can't find the EFI chip which I assume is a SOIC8
    better to keep quiet and be thought a fool, than to open your mouth and remove all doubt
  • piernov
    Super Moderator
    • Jan 2016
    • 4437
    • France

    #2
    Re: MacBook 820-2213-A location of EFI SPI chip

    U6301
    OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

    Comment

    • pfrcom
      Oldbie
      • Jun 2006
      • 1230
      • Australia

      #3
      Re: MacBook 820-2213-A location of EFI SPI chip

      Merci beaucoup

      Groan - underneath, no wonder I couldn't find it
      better to keep quiet and be thought a fool, than to open your mouth and remove all doubt

      Comment

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