after update,on start up imac switches off before completing full start up, have tried smc pram reset help needed

After update,on start up iMac switches off before completing full start up, I have tried SMC+ PRAM reset to no avail any advice would be great

iMac 21.5″, macOS 10.15

Posted on Oct 4, 2021 2:12 AM

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3 replies

hcsitas

Level 6

13,970 points

Oct 4, 2021 3:52 AM in response to peter jones9

What year model? Looks like a hardware issue, I would schedule repair (assuming it’s still supported) https://getsupport.apple.com/

peter jones9 Author

Level 1

8 points

Oct 4, 2021 6:34 AM in response to hcsitas

Many thanks for reply, now not supported local computer shop to sort out, again thanks for your time and trouble.

hcsitas

Level 6

13,970 points

Oct 4, 2021 6:39 AM in response to peter jones9

👍

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after update,on start up imac switches off before completing full start up, have tried smc pram reset help needed

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