When I turned on the Mac I get three tones, a circle image with diagonal line and wont boot.

I restarted it in safe mode and got a text msg. For a couple of seconda, then disappeared, saying

Panic 0 msg

Your pc restarted due to a problem

I restarted it once again with recovery keys. I think Cmd+R or Alt+R

And got the Get os x utilities menu:

  • Restore time machine
  • Reinstall os x
  • Disk utility

I tried restorin os and told me I had no Internet connection.

I selected disk utility option and when I clicked on disk 1 this information came up:

Select dsk:disk1 - os x base sys 1.26 gb
Appe partitipn map
Repair disk unavailable.
Verify disk unavailable

When I clicked on the ST disk this information came up:

500.11 gb GB ST9500325A...
Volume recovery HD seems to be ok
Partition map appers ok

I don't know why it wont boot.

How can I proceed from here to get my system back?

  • Hello benwiggy, I finally found the model: A1286. MBP 15" Core 17 2.2 Ghz/4GB/500 GB
    – JuanSilva
    Commented Feb 27, 2022 at 6:39
  • Updated answer with new info.
    – benwiggy
    Commented Feb 27, 2022 at 9:03

1 Answer 1


Here's Apple's Support document about error beeps at startup.

That's a 2011 MBP. Realistically, you need to have this physically inspected by someone. Given its age, I'd suggest looking for a local repair shop who works with Apple kit. (An Apple Store will say it's too old.)

If this is the original hard drive, then I would expect it to fail at any time, if it hasn't already. Replacing it with an SSD would be a cost-effective way to increase the life-span of this Mac. Maxing the RAM to 16 Gb would also help; though this is assuming that there aren't any other hardware problems.

  • No I have not. Thanks for your help. Will read document now
    – JuanSilva
    Commented Feb 26, 2022 at 4:48

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