MacBook Air 2017 won't start after wrong formatting.

Discussion in 'MacBook Air' started by miyaka_kanzaki, Apr 15, 2018.

  1. miyaka_kanzaki macrumors newbie

    Joined:
    Apr 15, 2018
    #1
    My sister bought a macbook air 2017 last month but now she's planning to sell it cause she wanted one with better memory. She tried following the steps on https://www.google.com.ph/amp/s/www.imore.com/how-do-clean-install-macos?amp but somewhere along Step 3 number 8 she did something wrong. (She said she erased something) Now, when she restarted the MacBook, it shows a black screen with a stop symbol on it. She's already tried reinstalling OS High Sierra but it does the same thing.
     
  2. Audit13 macrumors 68040

    Audit13

    Joined:
    Apr 19, 2017
    Location:
    Toronto, Ontario, Canada
    #2
    Is she installing HS from a bootable flash key? Tried Internet recovery?
     

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