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Macbook pro beeps and restarts infinetly

Macbook pro beeps before start up and then logo appears with progress bar but, then again restarts.


This is happening after I was trying to update Bigsur OS


please advise

Posted on Aug 11, 2021 10:48 AM

Reply
Question marked as Top-ranking reply

Posted on Aug 11, 2021 3:51 PM

Apple4kapil wrote:

The link doesn't describ


ref: Three long beeps, three short, then three long


To resolve a firmware issue, your Mac is restoring its firmware. You might see a progress bar, after which your Mac should start up normally. ref: https://support.apple.com/en-us/HT202768


It sounds like the firmware update was interrupted or is failing to install—which could point to a hardware issue, either RAM, SSD, or logic board...


I would contact Apple directly and see what they recommend:


Call Customer Support  (800) MYAPPLE (800–692–7753)


or on line  https://getsupport.apple.com/



Outside the USA—Contact Apple for support and service by phone

See a list of Apple phone numbers around the world.

https://support.apple.com/en-us/HT201232



You can try a SafeBoot if it will allow you to proceed:  SafeBoot https://support.apple.com/en-us/HT201262


You can try First Aid from Recovery, if it will allow you to proceed:  Recovery: https://support.apple.com/en-us/HT204904


Boot into Internet Recovery (Option Command R) and from the dropdown menu: Utilities>  Disk Utility> run the First Aid on your Macintosh HD (and the "Macintosh HD-Data" volume as well if Catalina/Big Sur) If errors are found and repaired, run again until no errors reported.


Disk Utility>View>Show All Devices The best sequence is —


  • Volume level
  • Container level
  • Parent drive





5 replies
Question marked as Top-ranking reply

Aug 11, 2021 3:51 PM in response to Apple4kapil

Apple4kapil wrote:

The link doesn't describ


ref: Three long beeps, three short, then three long


To resolve a firmware issue, your Mac is restoring its firmware. You might see a progress bar, after which your Mac should start up normally. ref: https://support.apple.com/en-us/HT202768


It sounds like the firmware update was interrupted or is failing to install—which could point to a hardware issue, either RAM, SSD, or logic board...


I would contact Apple directly and see what they recommend:


Call Customer Support  (800) MYAPPLE (800–692–7753)


or on line  https://getsupport.apple.com/



Outside the USA—Contact Apple for support and service by phone

See a list of Apple phone numbers around the world.

https://support.apple.com/en-us/HT201232



You can try a SafeBoot if it will allow you to proceed:  SafeBoot https://support.apple.com/en-us/HT201262


You can try First Aid from Recovery, if it will allow you to proceed:  Recovery: https://support.apple.com/en-us/HT204904


Boot into Internet Recovery (Option Command R) and from the dropdown menu: Utilities>  Disk Utility> run the First Aid on your Macintosh HD (and the "Macintosh HD-Data" volume as well if Catalina/Big Sur) If errors are found and repaired, run again until no errors reported.


Disk Utility>View>Show All Devices The best sequence is —


  • Volume level
  • Container level
  • Parent drive





Aug 11, 2021 11:32 AM in response to Apple4kapil

Apple4kapil wrote:

Macbook pro beeps before start up and then logo appears with progress bar but, then again restarts.

This is happening after I was trying to update Bigsur OS

please advise


Beeps how— single tone, repeating tones, what...(?)


What exact Mac?

what macOS were you running before the upgrade attempt?



If your Mac starts up to an Apple logo or progress bar

https://support.apple.com/en-us/HT207019


Aug 11, 2021 1:56 PM in response to leroydouglas

Device: Macbook Pro 2015 early release

Earlier OS: I was running Catalina before the upgrade begin


Here is whats happening when starting the mac


1) beeps like 3 shorts beeps followed by 3 long beeps followed by 3 shorts beeps again.

2) Shows Logo and progress bar and finished the progress bar

3) goes blank for about 30 seconds and again goes back to Step 1


The steps are repeating infinetely

I tried using Cmd + R during startup but, it didn't work.


How can I revert back to previous OS?


Regards,

Kapil

Macbook pro beeps and restarts infinetly

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