Released October 24, 2011 / 2.2, 2.4, or 2.5 GHz Quad-core Intel Core i7 Processor

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My MBP won't boot, with horizontal line at apple logo

Hello,

Sorry for my bad english. I'm using MBP unibody late 2011 2,2 ghz. Suddenly my MBP won't boot and horizontal lines appear at apple logo and than freezes with white screen. When I try to wait, my MBP starting to get hot and the fan speed is increasing. I already try the safe mode but it freezes again with blue screen and vertical lines. I also try to boot with recovery hd (holding down option key than choose recovery hd) but it freezes again with white screen. Can anyone identify the problem? Thanks in advance.

(I hope it's not the logic board because it's really-really too expensive for me)

Answered! View the answer I have this problem too

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I have green screen and artifacts on start up . No OS-X on HDD. But when I boot on the windows everything's work fine. MBP A1286.

In windows I see only Nvidia graphics card.

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Connect to an external monitor. If you see the same lines on that screen it points to a VGU/VGC (logic board) problem. The heat and fans lead me to think this may be what's going on but best to connect to an external monitor to confirm or deny that supposition.

If the external screen looks normal it would point to an internal video chain problem. Run AHT test 2 or 3 times to see what problems it finds. Record any error messages it reports - come back here with them.

If this Answer is helpful please remember to return and mark it Accepted.

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@machead3 : sorry for the late replay. I've tried the external monitor method, and I got the same white screen at the external monitor. And I've tried to reset the ram but nothing happen and I still got the white screen. Is it really the logic board problem?

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That's what it seems to be, unless it's OS corruption of the HD. The only way I know to test that would be to pull the HD and try to boot from another source (optical disk, external or Network drive) If that boot is white screen it confirms logic board and eliminates HD OR, put the HD in an external case and try to boot another Mac from it. If that boot is white screen" it would indicate the HD.

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@machead3 : sorry for another late replay. My internet was down. I've tried the hd method. First I put my MBP internal hd into an external case and I plug it into my MBP and try to boot. Nothing happen. I still got the same white screen. Second I borrow my friend MBP than put her MBP internal hd into an external case and plug it into my MBP and I try to boot. But still the same result. Third I plug my MBP hd to my friend MBP, and everything was fine. No white screen. It can boot.

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Pretty much confirms its graphics/logic board problem. The VGU is soldered to the logic board - so unless you had (spent extra $) to have a professional try to confirm/replace just the VGU a logic board replace (carries a new VGU) would be the DIY repair.

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Aww.... Well, maybe I should start to saving up some money than. :D

Anyway, thank you machead3. Thank you very much for your help. I'll mark this answer accepted. And again thank you. :D

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Hi,

I've just been through the same mess, details description of issue is as follow:

  • Red horizontal lines display right after you startup, it will go on to show you the apple (still in red horizontal lines), then it show the gray screen, and your fans start running like crazy.

If you switch to Windows OS you'll be able to run on safe-mode, and the screen look like... well you know

My conclusion is the RAM, not normal issue, a special RAM issue. I followed these steps and fixed it:

Take out one RAM

  • Reboot on recovery mode, (press and hold: command + R)
  • Then it will display a crappy screen again still the apple sign
  • Then it will turn blue.

Don't panic, shut it down this time do a PRAM reset (press and hole command + option + P + R)

If the RAM you are using is ok, everything should back to normal. If not, then replace it with the one you just took out and do the whole thing again.

I tried command + R alone, and it not work. I then tried PRAM reset (press and hole command + option + P + R) alone, it did not work. Only when I combined them, then it worked!

Also, it you put the faulty RAM in and take it out, even though you are sure the RAM is OK, the problem still exist without doing the process that I just described

Hope this helps, and stop paying Apple for non-sense things.

P/S: I keep wondering why all MacBook's suddenly have the same issue at the similar period. If Apple do this on purpose to make us purchase new stuff?

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I have a late Macbook 2011 and this worked for me, I just happened to run into this solution and found it worked. It was a combination of command+R and removing memory and replacing memory. Very odd problem..... it's clearly something to do with memory and the system getting in an odd state. Running now on the same system.

Great post tulu, wonder how many other Macs would have been solved with this, instead of apple saying your GPU is bad.

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I had to remove one of my RAM's to get back to stability, I clearly had some bad samsung ram. But I had the same exact symptoms.

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Thank you, I might not have followed everything properly, and I didn't touch the RAM, but I was getting a dark , almost black screen, when I re-booted, it had green & pink vertical stripes. I tried the (shift-option-control-power) trick, then reboot, that did nothing. Then I tried your (option -control-R) & finally got the vibrant blue screen, went back to the (option-control-R-P) and it finally came back to life. Thank you again, I don't have the $ for a new computer right now.

I'm thinking this is not a good sign and should start saving and shopping for a new unit. I only have 4 gigs total RAM, maybe I should increase that, it seems easy, though I've never tried to open this computer.

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thanks a lot it worked great for my mac. i'm not sure if i followed the steps precisely but removing the RAM and messing around with it worked magic :)) thanks again

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It fixed for me but came back again on next restart. I have to do it every time when I restarts the machine. My MBP is also restarting anytime now if I leave it in idle state or move it from one place to another.

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The 2011 15inch has bad GPU/South bridge issues. Apple warranties these items free of charge.

Contact apple or go to your nearest authorized dealer. Tell them you have been having artifacts on the screen and lines.

That it has started showing a pink hue and no longer boots.

You should be able to have it fixed for free.

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I had the same problem on my early 2011 15" Macbook Pro

I solved it by resetting the SMC

Reset the System Management Controller to Fix the Striped Display on Boot

This will dump and reset settings for anything power management related, and is long known to resolve problems with things like fans, heat, sleeping problems, and of course, display issues.

On any modern MacBook Pro or MacBook Air with a built-in battery, which is just a bout all of them nowadays, this is how you do that:

Shut down the Mac and connect it to your MagSafe adapter and a wall outlet as usual

Hold down the Shift+Control+Option+Power button at the same time for a few seconds

Release all keys at the same time, then boot the Mac as usual

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This fixed the problem on my Macbook Pro 15" early 2011, thank you!!!

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The problem with the stripes came back and after trying all these tricks the computer doesn't boot and the screen now shows Apple logo on a gray background and then turns to a blank gray.

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See Edit1.

This issue may happen on a faulty battery. My macbook complained for a long time to change the battery, it was almost death, but I tried to get the most of it. After one year, maybe longer, I got the same behavior as explained in the main question. I tried all kind of startup keys and at first I thought that was the solution because after trying so many times I could boot again successfully, but after a while it happened again. The laptop was getting very hot when not plugged to the current, this was freezing the macbook, sometimes i got the blue lines, other times it just got frozen and I could only hold the power button to reboot.

After some trial-error i realized the problem was coming for a low voltage in the logic board. When plugged to the current everything worked like a charm, so next step for me is to get a battery replacement.

Hope this helps, cheers !

Edit 1:

After receiving the new battery the issue persists. Then i found this link https://www.apple.com/support/macbookpro..., apparently there is a known video issue for 15-inch and 17-inch MacBook Pro models manufactured in 2011 and 15-inch MacBook Pro with Retina models manufactured from Mid 2012 to Early 2013.

You can check in the link if your macbook is under the repair extension program and they would fix it for free. Mine does.

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Xavier, Your link to the known issue saved my life!! I thought my MBP 17 " was toast but I found your link, followed it, printed it out and took it to the Apple store and they agreed that it was covered under the program and that it was a known issue. If it hadn't been for you, I'd still be scratching my head with a dead Mac.

--Klaus

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Hi @vondohlen I'm glad that it helped you.

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I had a similar issue where a 2011 Macbook Pro 8.2 would restart on its own. This was taken in 2013, and repair was done. I assume that the logic board was replaced. This issue cropped up again where the computer would shut off intermittently. Had random issues recently where the blue tooth stopped working, and then started after replugging the cable.

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Had a dramatic problem where the MBP would start up, having bluish line on the apple logo then would enter a gray or blue screen. Was able to boot Cmd-S, Cmd-R, but always after they started to load up went back to gray or blue screen. Did SMC reset, Pram reset, replaced RAM chips, nothing worked. Finally wrapped the MBP in a blanket and left it on so it would overheat and shut off. As soon as it shut off I repeated again, then the boot up screen appeared fine. Did another reboot and the computer seems all fine. In a working state after overnight and being attached to external thunderbolt display. Have it running on a flat desktop and is running cool. I guess the heat was able to melt the appropriate connectors and now it has resent the GPU as working. Not sure how long this will last.

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System Preferences

Energy Saver

uncheck Automatic graphics switching

see if that works

mavericks late 2011 MBPro 15 inch

don't forget to turn on your firewall after a clean install

System Preferences

Security & Privacy

Firewall

Click the lock to make changes.

Turn On Firewall

Click the lock to prevent further changes.

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I can't get it to boot up to go into those

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Hello,

i have also the same problem,

what i notices from my search on the internet almost all the late 2011 laptop have this kind of problem,

first i thorough its a Hard drive problem so i replace it and after i finish installing Mac ox 10.7 it crash again and it did not want to boot, after many trails with removing the ram and place them again it did work and boot.

now i am afraid to install the rest of my programs thinking that it may happen again and not boot.

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I also faced this problem yesterday. Horizontal lines over logo, Doesn't boot no matter what i tried

PRAM Reset, SMC Reset, Verbose mode, Safe boot - none worked

My friend had a look and said that he will try to save it.

He tried a process which he called "reflow" the gpu, i think.

Basically the Derived graphics card in my mac has stopped working he claimed and using a box like device he heated it up to the right temperature and this melt the led and made it connect properly and the laptop booted just fine :D

After this, I just started gfx card status and made sure that my laptop will only use my Integrated Intel HD graphics as a precaution and prevented automatic switching. Its been working fine till now

Hope this helps someone else If they have a problem

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I had this problem as well,conducted all types of test to include internal hardware.

I noticed that my power cable was slightly damaged at which I had it repaired but I continue to have the same problem so I decided to replace the original 85 watts power cable (from Amazon).

Since the replacement of my power cable I've had zero problems.

Check your cables for damages

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I had almost the same problem. MBP froze, so I had to reboot. Showed up with vertical blue and red lines with a red and black apple sign, with boot up progress bar. Once it made its way through, it would go to blue/ white screen, then shut off and start all over again.

Last night, after trying all kinds of things, it just started working again. Today, I went to reply to a message on Facebook and it did it again. (Btw, the first time it did it I was trying to send a message in Facebook Messenger or whatever the !&&* the private message feature is called.

Not sure why it started, why it 'fixed itself' or why it did it again. I will try some of the things on here as post results.

Oh yes, my fans did not come on when it did that until just now. It just kept trying to restart. Also, sometimes it said 'your computer was shut down because of an error' or something like that. Doesn't stay up long enough for me to get pic with my phone and doesn't always come up.

Thanks to all the people posting.

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Warnerin will be eternally grateful.
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