OS X Yosemite keeps rebooting on start up

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Level 1

2 points

OS X Yosemite keeps rebooting on start up

Hi everyone, I have an early 2011 mac book pro and I upgraded it to OS X Yosemite 5 days ago, first few days was problemless, but I experienced lots of problems starting from today.

Today my Mac shut down all of a sudden, and when I tried to reboot it, it displayed garbled graphics with weird colors and progress bar and apple logo was all garbled. I waited to see what was going to happen, after reaching the half of the progress bar, screen went grey and in 10 seconds, mac rebooted itself and same events took place over and over.

I tried command + option + r + p trick, it didn't help, I had bootcamp installed, I tried pressing option after chime and starting windows 7, it didn't help either. I tried to reboot in recovery mode, progress circle kept turning, then screen became blue, fans started to work really loudly. Then I had to turn off using the power button.

The only combination that allowed me to turn on my macbook pro is command + r, after progress circle turns for a bit, screen becomes blue, despite all the fans working really heavily, if I wait for a minute and turn off the machine by using power button and turn on again, mac starts without a problem, I don't see any garbled graphics whatsoever. I don't know why it works that way, But If I shut down, and power up again, same garbled graphics show up, this is really annoying, to make my laptop work, I need to turn it on and off 2 times. I verified disk with disk utility. It looks fine. Does anybody have this issue, what else can I try? I would really appreciate if you share your thoughts on the issue.

MacBook Pro, OS X Yosemite (10.10)

Posted on Oct 28, 2014 1:17 PM

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Answer 1

earikan35 Author

Level 1

2 points

Nov 23, 2014 9:51 AM in response to earikan35

I took my mbp to official store in istanbul today, they told me that main board needs to be replaced , which will cost me close to $525, I am not quite sure if this is a sound investment, looks like a lot of people is experiencing the same issue, if you search mbp2011 in twitter, you will see lots of tweets about it, looks like approximately 25000 people have this issue. I am so disappointed with apple, I don't know where to begin.

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Answer 2

Kappy

Level 10

361,709 points

Oct 28, 2014 1:22 PM in response to earikan35

Reinstall Lion, Mountain Lion, Mavericks or Yosemite without erasing drive

Boot to the Recovery HD:

Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.

Repair

When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.

Reinstall Lion, Mountain Lion, Mavericks,or Yosemite

OS X Yosemite- Reinstall OS X

OS X Mavericks- Reinstall OS X

OS X Mountain Lion- Reinstall OS X

OS X Lion- Reinstall Mac OS X

Note: You will need an active Internet connection. I suggest using Ethernet

if possible because it is three times faster than wireless.

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Answer 3

earikan35 Author

Level 1

2 points

Oct 28, 2014 1:26 PM in response to Kappy

Hi Kappy, thanks for the response but I can't boot to recovery HD like I stated in the original post, when I try to boot to recovery HD , screen becomes blue and fans start to work really heavily and nothing else happens. I tried every way that is stated in your post, all of them ends up in blue screen.

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Answer 4

earikan35 Author

Level 1

2 points

Oct 28, 2014 1:35 PM in response to Kappy

Can I download yosemite installer one more time and run it in os x yosemite to fix this issue? Or do you think it will make things much worse.

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Answer 5

Eric Root

Level 10

684,015 points

Oct 28, 2014 1:40 PM in response to earikan35

Try downloading the installer again and then make a bootable USB using this program. Then boot from it, Run Disk Utility Verify/Repair and Repair Permissions until you get no errors. Then re-install the OS.

Bootable USB Flash Drive – Diskmaker X

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Answer 6

earikan35 Author

Level 1

2 points

Oct 28, 2014 1:47 PM in response to Eric Root

Thanks, Will do that and get back.

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Answer 7

earikan35 Author

Level 1

2 points

Oct 28, 2014 1:51 PM in response to Eric Root

By the way, I am able to start the Yosemite like I stated in the original post by doing command + r and getting a blue screen, and that way I can run the disk utility, and I already verified the disk and fixed some permission issues. Do I still need to do the same thing from the usb one more time?

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Answer 8

Kappy

Level 10

361,709 points

Oct 28, 2014 1:52 PM in response to earikan35

Indeed you can, but based on what you are describing I suggest you perform a clean install rather than installing over the current system. Be sure you backup your files first.

Install or Reinstall Yosemite, Mavericks, Mountain Lion, or Lion from Scratch

Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.

How to Clean Install OS X Yosemite

OS X Mavericks- Erase and reinstall OS X

OS X Mountain Lion- Erase and reinstall OS X

OS X Lion- Erase and reinstall Mac OS X

Note: You will need an active Internet connection. I suggest using Ethernet if possible

because it is three times faster than wireless.

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Answer 9

earikan35 Author

Level 1

2 points

Oct 28, 2014 1:55 PM in response to Kappy

Thanks I don't have an extra drive in hand, I will first try to install it from the installer if that doesn't work, I will back up the files and will do a clean install.

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Answer 10

Kappy

Level 10

361,709 points

Oct 28, 2014 3:02 PM in response to earikan35

Then do it this way:

Reinstall Lion, Mountain Lion, Mavericks or Yosemite without erasing drive

Boot to the Recovery HD:

Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.

Repair

When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.

Reinstall Lion, Mountain Lion, Mavericks,or Yosemite

OS X Yosemite- Reinstall OS X

OS X Mavericks- Reinstall OS X

OS X Mountain Lion- Reinstall OS X

OS X Lion- Reinstall Mac OS X

Note: You will need an active Internet connection. I suggest using Ethernet

if possible because it is three times faster than wireless.

Reply

Answer 11

ivs.sege

Level 1

4 points

Nov 1, 2014 10:38 PM in response to earikan35

Having the same issue with Yosemite. Did you find a solution?

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Answer 12

earikan35 Author

Level 1

2 points

Nov 2, 2014 12:31 AM in response to ivs.sege

No luck so far, I did a clean install last night like they suggested, computer hung on system start, I left it like that and went out, when I came back, it booted fine, I was convinced that issue is gone, but then I connected backup disk, and selected enter time machina, computer froze and I had to hard boot again, when I reboot guess what happened?, garbled graphics and auto reboots, so doing a clean install fixed nothing, I lost 6 hours of my life in vain, now I am restoring entire system to a backup before clean install it will take another 5 hours, I am sorry that you are experiencing same issue, but I am also glad that I am not the only one experiencing this issue

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Answer 13

ivs.sege

Level 1

4 points

Nov 2, 2014 1:29 AM in response to earikan35

Thanks for the update. Hopefully the restore works. Let me know how you get on and I'll follow suit.

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Answer 14

Nov 2, 2014 12:20 PM in response to earikan35

I have the same problem on my late 2009 27' iMac. Yesterday I reinstaled from a time machine backup, but when I started today had same problem. Vertical blue lines, and system doesnt starts.

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Answer 15

earikan35 Author

Level 1

2 points

Nov 3, 2014 9:44 AM in response to Sunilimon

I restored from time machine after clean install didn't fix my problem. So far it works ok, but I am not convinced that the issue won't come back. Most likely it will,because it did after a day or so after it is fixed. Hoping that apple releases an update that fixes the issue.

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