iMac stuck on checking null

App & System Services Core OS
StormieLCrawford OP
Created 5d
Replies 1
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On any update, regardless if it’s Mojave or high sierra or catalina many Apple iMac owners were having issues with this- “iMac is stuck on Checking null, it won’t go any further. How do I fix this?”. I spoke to 4 representatives and no Apple representative could help with my issue. So here is a 100% solution. back up your iMac if you don’t want to lose anything.

  1. hold the power button until your iMac turns off
  2. ouch the power button and let go immediately and push and hold “COMMAND” and “R” until your utilities pop up.
  3. Erase and reinstall a new versio of your current macOS update.
  4. Let this finish and DO NOT sign into your Apple ID now. Accept the terms and cond and follow all the steps. Once you are in the computer you can sign in.
  5. now you may update your iMac to whichever update.
Replies  1
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Views  75
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darkpaw OP
4d

These are the Developer Forums, where developers of apps for Apple's platforms ask each other for hints and tips on coding. These forums are NOT where Apple's actual developers chat about stuff.

Your post is more of a product support one, so I'd suggest you post it over at the Apple Support Forums. Thanks.

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iMac stuck on checking null
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