Retina 4K iMac Sierra - Distorted/Colored Apple Boot Logo

Discussion in 'macOS Sierra (10.12)' started by Tucom, Oct 19, 2016.

  1. Tucom macrumors 65816

    Tucom

    Joined:
    Jul 29, 2006
    #1
    So I did a clean install via a USB drive on my Retina 4K iMac, and during the boot process with the black screen and Apple logo, when the progress bar reaches the middle or so, the Apple logo flashes red/green as does the progress bar.

    Other than that the OS and machine function fine. Anyone else run into or experience this? Should this be something to be worried about?

    Disc Utility found some corruption which I got fixed in Recovery mode, but still exhibits this bizarre behavior.

    If anyone needs a photo or video I'll try to get one up.

    Thanks
     
  2. blackdogaudio macrumors member

    blackdogaudio

    Joined:
    Aug 17, 2016
    #2
  3. Tucom thread starter macrumors 65816

    Tucom

    Joined:
    Jul 29, 2006
    #3

    Excellent, thank you. Will report back if it persists after the next Sierra update.
     
  4. blackdogaudio macrumors member

    blackdogaudio

    Joined:
    Aug 17, 2016

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