Macbook Pro weird screen patterns and unable to boot

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Macbook Pro weird screen patterns and unable to boot

My 15" 2.66GHz Macbook Pro (Mid-2010) (MC373LL/A) ran out of battery today, and once I plugged it back in and booted I got these weird patterns on the Hi-Res display. After a long time, the loading symbol froze. I have restarted it several times now and the odd lines come back in different colours (red, blue and green) and the loading symbol continues to freeze. I cannot get past this screen.

I can't take it into the store for some time as I am currently abroad. Any ideas on how I might fix this? And do you think my files are still safe?

Thank you

MacBook Pro, Mac OS X (10.7.4)

Posted on Jul 22, 2012 9:12 AM

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Answer 1

Jul 22, 2012 9:20 AM in response to BenCBrook

I would try resetting PRAM:

- shut the machine down

- power up the machine

- immediately hold the key combination <COMMAND> + <OPTION> + p + r until you hear the restart chime a couple time

If that doesn't resolve the problem I would reset the SMC

See the thread where Barney-15E links to a couple Apple help pages:

https://discussions.apple.com/thread/3819550?start=0&tstart=0

I am providing those lins here too:

http://support.apple.com/kb/ht1379

http://support.apple.com/kb/HT3964

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Answer 2

BenCBrook Author

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Jul 22, 2012 9:32 AM in response to Wayne Contello

Thanks for the swift reply, I have reset both of these but it was to no avail. Any other ideas?

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Answer 3

Jul 22, 2012 9:52 AM in response to BenCBrook

Boot to the recovery disk

reboot and hold the key combination <COMMAND> + r

then run disk utility

review this link:

http://support.apple.com/kb/HT4718

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Answer 4

BenCBrook Author

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Jul 22, 2012 9:57 AM in response to Wayne Contello

Will that not restore and erase my HDD?

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Answer 5

Jul 22, 2012 9:59 AM in response to BenCBrook

You CAN do that but one of the options is to repair a disk. Run Disk utility and repair the disk, then repair permissions.

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Answer 6

AWM1963

Level 1

8 points

Jan 21, 2013 11:26 AM in response to BenCBrook

this resolved my issue - THANKS!

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Answer 7

Oct 7, 2013 4:40 AM in response to BenCBrook

How could this issue be related to a faulty disk? I have the same problem/pattern but it did occure when ever the discrete gfxcard is used and the fans begin to turn. So it should be a problem of an overheating graphics card. did the recovery disk really solved your problem? i think your and my problem is a hardware issue so it could not be fixed with software. please teach me wrong.

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