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820-00165 not booting fully, tried practically everything.

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  • #16
    Just an update for people reading this topic with similar issues

    Got an email from the customer that the MacBook Air suddenly decided to boot up fully (he sent me a photo of the login screen)
    This absolutely baffles me. have no clue what the issue was and will probably never know now.

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    • #17
      Thanks to Discord chat, piernov and ChrisB, we found a solution for this problem.
      Q1920 is a Strap to temporarily disable ME region. I had 2 boards, 820-3437 and 820-00165, both with the same "boots till 100% than freezes" and "iGPU kext timeout" in Verbose mode.
      3437 had some water damage on R9120 and R9121, 00165 was completely clean but after i repaired the first one i've found that there was a low resistance between GND and SPI_DESCRIPTOR_OVERRIDE_L lines.

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      • #18
        Thanks for posting this. Will have a look at that next time still weird that it works now though.

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