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After Update Mojave to Catalina Blinking Question Mark Folder

I used macOS Mojave on mid-2014 MacBook Pro before update. While installation it forced me to restart. After restart nightmare has been started. The Blinking question mark folder has appeared on my screen.

I tried,

  • Reset SMC and NVRAM (With all combinations these are find on internet and apple support page.)
  • Accsess local and network recovery (with all key combinations)
  • Access to time machine restore (with all key combinations)
  • Mojave installation USB stick (that USB works we tried another Macs)
  • External disk that includes pre installed mojave (that external OS works well we ran on other Macs)
  • Unplug all battery power (black reset)

Any suggestions?

Posted on Oct 8, 2019 12:41 PM

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8 replies

Oct 12, 2019 9:53 PM in response to chuck_3rd

This is bad, very bad, Catalina upgrade is randomly bricking devices and forums online are starting to sum up with the exact same problem. Please , keep us posted on how it goes with you, I will also contact Apple support myself tomorrow. Today I got a call from 3 friends who are facing the exact same problem, one with a MacBook Air 2014, other with a 2015 Air and another with a 2014 MacBook Pro 15". All the same symptom and happened just after upgrading to Catalina and asked to restart their computers.

After Update Mojave to Catalina Blinking Question Mark Folder

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