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I have MacBook Pro Retina Mid 2014 with Catalina installed. Initially my Mac is randomly shut down and later it shutdown every time I logged on to the Mac. It will display the desktop for a few seconds then shut down.

The Mac keeps shutting down in the Safe mode and also Recovery mode. But when I run Apple Diagnostic it says that there no errors found.

When I look in the log from advice in comments, I get "shutdown cause -128"

Do you think my logic board is broken or this is related to something else?

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  • This might be a Hardware Failure issue but before tampering with that, try resetting the NVRAM/PRAM and SMC. Check out the two Apple Support articles showing how to do that. support.apple.com/en-us/HT204063. support.apple.com/en-us/HT201295
    – Todd
    Commented Apr 29, 2020 at 14:12
  • Let’s take a look at your logs. See this answer for some instructions on how to parse the log. Update your question with the results and then we can move forward with finding you a solution.
    – Allan
    Commented Apr 29, 2020 at 15:03
  • @Allan I've tried it before and it returned -128. Anyway I'm gonna try solution described here apple.stackexchange.com/questions/306714/…
    – webchun
    Commented Apr 30, 2020 at 13:03
  • -128 is hardware. Disabling protection is the OS isn't going to fix what's inherently wrong with your Mac. Check your memory - see: apple.stackexchange.com/a/212810/119271. If that's not it, you need to take it in for service.
    – Allan
    Commented Apr 30, 2020 at 13:05
  • Thanks for all links @Allan I'll try it one by one
    – webchun
    Commented Apr 30, 2020 at 13:20

1 Answer 1

Reset to default
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This could be a Hardware issue.

But you have these options that can help:

1) Reset your Mac's NVRAM or PRAM.

2) If you continuing experiences issues, try to reset the SMC of your Mac.

I hope that works.

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