You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

it couldnt startup

hello , i updated my IMAC to the new Os Montery and it couldnt startup after that what can i do ?

iMac 21.5″, macOS 10.13

Posted on Feb 19, 2022 10:01 PM

Reply
Question marked as Top-ranking reply

Posted on Feb 19, 2022 10:32 PM

elaf162 Said:

"it couldnt startup: hello , i updated my IMAC to the new Os Montery and it couldnt startup after that what can i do ?"

-------


Troubleshooting MacBook Pro Power:



As for replacing that battery, that may not be necessary. Try troubleshooting it.


A. Black Mac Screen:

Go Here: If your Mac doesn't Turn On or Start Up - Apple Support

Using External Devices: Try Resetting the SMC and NVRAM, but this time, using an external keyboard. Connect an external monitor and see if you get an output.


B. Mac Power Issues:

Try a New Charger:

If it is currently charging from a charger, then use a new charger:


C. A Few Links to Refer to Power:





2 replies
Question marked as Top-ranking reply

Feb 19, 2022 10:32 PM in response to elaf162

elaf162 Said:

"it couldnt startup: hello , i updated my IMAC to the new Os Montery and it couldnt startup after that what can i do ?"

-------


Troubleshooting MacBook Pro Power:



As for replacing that battery, that may not be necessary. Try troubleshooting it.


A. Black Mac Screen:

Go Here: If your Mac doesn't Turn On or Start Up - Apple Support

Using External Devices: Try Resetting the SMC and NVRAM, but this time, using an external keyboard. Connect an external monitor and see if you get an output.


B. Mac Power Issues:

Try a New Charger:

If it is currently charging from a charger, then use a new charger:


C. A Few Links to Refer to Power:





Feb 19, 2022 10:32 PM in response to elaf162

elaf162 Said:

"it couldnt startup: hello , i updated my IMAC to the new Os Montery and it couldnt startup after that what can i do ?"

-------


For Reference:

Troubleshooting Mac Power Drain:


Three Things:

I. Boot in Safe Mode:

[Hold Down: shift key, upon boot], In Safe ModeLogin Items do not run at login, certain preferences are set aside, and damaged system files are then reset. So, once booted in to Safe Mode, wait 30 seconds, and then boot up normally seeing if you still get this error.


II. Try a New Admin User:

What happens when you create a new administrator user, and log into it? Do you still get this error? If not, then it is likely an error with the current user. If so, then it is likely an error with your Mac.


III. Reset your SMC and your NVRAM:

Sometimes changes (i.e. Installations) are made to the system and then settings (i.e. for Power) become corrupted, technically. So, reset both on your Mac. So, reset the SMC (Intel-only Macs) and reset the NVRAM or PRAM. It might take three tries. to fix this. So, be certain you have the time to do so.

Start With This:

it couldnt startup

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.