First Horizontal multicolored lines and now it won't turn on

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MacBook Pro 13" Unibody Mid 2012

Mid 2012 model, A1278 / 2.5 GHz i5 or 2.9 GHz i7 processor.

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Anurag @anurag58649

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Gepost: 6 sep. 2014

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First Horizontal multicolored lines and now it won't turn on

So out of the blue my Mac hanged and started showing horizontal multicolored lines all over the display I restarted it and then worked normally for half an hour and again the same happened.

This process repeated a couple of times and now even though my battery is charged it won't turn on,

Power button doesn't responds. When I plug charger it charges the battery normally and even battery indicator shows the battery amount but just won't turn on !

Please help

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Ja Nee

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Sadly thats not a good sign. Did you get your system wet at some point? Sitting it down in a puddle or spilling something on the keyboard?

Given the system is on the newer side do you still have AppleCare (extended care)? Or have an Apple Store near you?

Are you up to fixing your system your self? Do you have the needed tools and skills?

6 sep. 2014 door Dan

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2 Antwoorden

Sadly thats not a good sign. Did you get your system wet at some point? Sitting it down in a puddle or spilling something on the keyboard?

Given the system is on the newer side do you still have AppleCare (extended care)? Or have an Apple Store near you?

Are you up to fixing your system your self? Do you have the needed tools and skills? — Dan

originalmachead @originalmachead Rep: 116,3k 66 68 359 · Answer 1 · 2014-09-06T07:53:17-07:00

originalmachead @originalmachead

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Gepost: 6 sep. 2014

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I can't think of any reason other than liquid spill into the machine that would cause the power on button to completely cease functioning.

When you press and release the power button absolutely nothing occurs? No lights, or sounds at all?

Try holding the power button down for more than 10 seconds, then releasing it If your machine does not immediately reboot then press the power button once. Did that boot or cause any lights/noises?

If this answer is acceptable please remember to return and mark it.

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Bender @bender89039 Rep: 1 · Answer 2 · 2014-12-21T00:08:43-07:00

I have this problem in similar fashion. One day, the screen just went to a wall of lines and colors. It was a solid wall, meaning there was no image behind a transparent wall of lines like the graphics problem people are having these days.

I could reboot it only sometimes, meaning it would labor to start and sometimes only get the deep blue screen. Sometimes it would bong once, cycle and start. Sometimes it would bong, cycle for a long time and then turn off. And after about a dozen times getting by like that, it would either not turn on all or it would bong and just turn off.

That was months ago and I decided to search again to see if there might be a solution because the Ubuntu Dell I'm using is lacking in features.

Though the following link is from 2006 (for the 2006 models) and mine is a MBP Model ID 8.2 (which is from 2011/2012) it worked (or so I think, because I'm using it again after many months but I have not tried to reboot to see if the fix has taken):

Quote: "You can get your computer to restart by holding down cmd-opt-p-r after turning on the power. Keep the keys pressed until you hear two 'bongs'."

https://discussions.apple.com/thread/590...

Disclaimer: For me, it didn't go quite according to those instructions. I hit the keys after the gray screen came on before the bong. It went BONG, cycle, black, gray, BONG, cycle, black, gray... So I let go of the keys. It turned the deep blue. I watched for a moment and saw my cursor. I waited, then hit the key combo again and it went: gray, BONG, cycle.... SPLASH SCREEN! YAY! And after many months, it's working again.

In the meantime, I'm saving all my data to an external drive (like I didn't do foolishly before) before I try rebooting.

ps. I suspect I'm having a heat issue. I used the mac on my bed all the time (as a norm for years) leaving it on all the time. The battery has swelled, too, putting pressure under the touchpad causing "left click" not to work without smashing down hard (which is not a good idea). I read here to get a new battery (if that's your issue, too):

http://www.everymac.com/systems/apple/ma...

There's a link in body of the text leading to a page telling you how to do it yourself.

Update: Soon after I posted the above, the battery (which had 56 minutes left) alerted the standard message of having only about 10 minutes left. No sooner than I clicked OK that the screen switched to flicker a dark purple color extremely fast. I plugged in the power but the flickering kept going unchanged. When the power button was held down, the screen brightened to a lighter purple and flickered off. After waiting a good 20-30 seconds, pressing the power button booted it right up. But the fan came on because it was heating up (for foolishly having it on the bed again.)

But this mac is surely in its final stretch of life as-is. After transferring all the files (sitting on a better surface than my bed), I'm going to shelve it and just use the Gateway pc I ordered earlier today (strapped for cash) and use that while I save up during the year to fix the Mac's battery and possible logic board problems (on my own--I'll be my own genius).

Good luck to you. — Bender