OS X :: Macbook Won't Turn On - Sleep Light Flashes
Aug 6, 2010
my Macbook (I believe a 2008 model wouldn't wake up from it's sleep like it does every time I open it (I usually set it to sleep rather than shut it down). I turned it off manually, but when I attempted reboot it does either one of two things:
a) When I simply press the power on button, the screen stays black and the sleep light fades on once, but then fades off and all mechanical sounds abruptly stop.
b) When I press and hold the power button, the sleep light fades on, but then flashes about 10 times rapidly before fading in and once again abruptly turning off.
I have tried this with the charger plugged in several different outlets, not plugged into the Macbook, waiting, removing and putting back the battery. A Google search said it might have something to do with the RAM and pushing it back in, but I have no idea how to do that.
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Oct 5, 2010
I bought a new mpb , i7. a few weeks ago it turned off and it wouldnt turn back on when i connected it to the power source , the sleep light however kept flashing, and it madethis sound like if it was trying to boot. anyway,i left it charging for a bit and it started working on its own.
however, lately its been shutting down when it runs out of battery instead of hibernating (which is really frustrating). and just now its doing the flashing thing again, cept for a much longer time.. any idea how to resolve this/what might be wrong with it?
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Jun 22, 2009
l tried to turn on my macbook pro this morning, but it doesn't turn on. When l press power, the fan and sleep light come on. but after about one second, it shuts down. The chime and screen dont come on.
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May 13, 2010
I own a MacBook Pro 2.4Ghz and my problem happend like this:Last night I stopped playing SC2 and closed my MBP, then this morning I noticed that while it was closed, it had not gone to sleep mode, or at least that's what I thought, because it was too hot and the fans spinning hard. I openned it and showed no video, but remained on. After a 5-sec power button restart, it flashed the sleep indicator once and did nothing else, except for the HD spinned for a sec.I took the battery off and gave the computer time to cool off, because I sensed it way too hot.After I reinstalled the battery, I was able to turn it on the normal way, it worked just fine, but later I closed it again and when I openned it, it showed no video again.I repeated the process of letting it cool down, but with no effect this time.The sleep indicator turns on once and it does nothing.I tried swapping the memories, resetting the SMC, tried booting pressing control + command + r + p, tried booting without the battery, tried booting without the magsafe, nothing has worked.Now what happens when I press the power button is I hear the HD try to spin for half a second and the sleep indicator turn on once.
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Jul 18, 2010
This morning, I synced my iPod with my MacBook and upon completion and permission to disconnect the device, I pulled out the USB cord. At that point the computer instantly turned itself off, and when I hit the power button, I could hear the system trying to start up, but the screen remained black and the sleep light glowed continuously. I unplugged the charger, took out the battery and put it back in, and tried all the troubleshooting tips under the Apple Support guide with no success. I also discovered that when I closed the laptop while it was "on," it would seem to boot up a little more before returning to the black screen. I left it alone for a few hours, and when I tried again to turn it on, it booted up normally and as I was searching for updates, it shut down again as it had earlier.
Does anyone have anything for me to try? I don't want to have to take it into a shop because I can just barely afford to, but I need this computer! Any suggestions would be greatly appreciated :-)
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May 30, 2009
Magsafe light flashes green to red and battery will not charge.
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Feb 24, 2008
i just got my MBA on monday and now the magsafe adaptor doesn't work anymore, it flashes green light and does not charge. Does anyone know what's wrong with it?
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Jun 26, 2012
My Macbook Pro does not always turn on first time, it takes awhile to click on, it just clicks every time I try to turn it on, It turns on when its warm though, it also turns off when I close the lid, but the light says it is on, after leaving the lid closed for more then 5 minutes, and I open the lid it is turned off? I do not understand what is cuasing the problem?
Info:
MacBook Pro
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Mar 31, 2008
The iMac G5 (17") doesn't want to boot up, when I press the I/O button it flashes with its white light, and then nothing happens. When I do that with the back-cover off light 1 is lit as long as the machine has power, but light 2 only flashes when I connect the pins that the powerbutton connects. I know that there was a problem with the powersupply, but the soldering I did should have fixed that.
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Oct 10, 2009
I set the MBP to sleep in 10 min through the Energy Saver pref with the option to sleep the hdds. When it's about to sleep the screen dims, then turns black, then the sleep light comes on but does not blink no matter how long I leave it. The blinking only happens when I close the lid or when I select the Sleep option under the Apple logo. Is that normal behavior?
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Sep 9, 2010
own a mac 19" desktop computer, it turns on but only flashes a picture of a folder with a question mark in it. is it done? any input would be appreciated.
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Dec 13, 2009
Every time I wake up my Mac Pro, the monitor flashes 2-3 times before it is fully on. Quite annoying. Any idea what it might be? I have the latest Mac Pro 2.66 Quad (got a referub about a month ago) and LaCie 526 (same as NEC 2690). Basic video card, DVI connection.
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Apr 13, 2012
The on light at the front of the base (right edge) went out. I have a late 2011 MacBook Pro 13 inch. The apple on the cover side of the monitor still comes on. Oddly enough, this happened right after I installed a trial of Photoshop version 13.0.0 Beta. Should I just have the light replaced or could this be a signal of other problems? I don't have a lot of new stuff installed since I'm coming from a pre intel mac desktop.
Info:
MacBook Pro, Mac OS X (10.7.3), 2.4 GHz Intel Core i5 4GB 1333 MHz
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Jan 11, 2011
How do you turn off the apple light on the lid of the macbook pro?
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Mar 30, 2012
My mac decided not to turn on. The light is green but it won't turn on.
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Jun 4, 2012
My wife's MacBook Pro has failed to start. Strangely the button to open the lid on front flashes.The computer recently had a new mother board put in. Feburary. Bit of a waste of money on and old mac. But there you go.Now we can't get it to turn on.Disk drive macs a sound but screen doesn't even turn grey.Can't seem to reset PRAM. Get no chimes at all.
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Jun 10, 2012
I've recently noticed that my MPB Keyboard's light won't turn off automatically. I've checked System Performances > Keyboard, it should turn off after 5 seconds. but it doesn't do that.
Info:MacBookPro, Mac OS X (10.7.4), Magic Mouse, and airport express
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Dec 6, 2014
My mac book pro wont turn on nothing except i hear sound inside it thats only when i bring it close to my year thats it and the light for the charger is very dim i have changed the charger and its the same thing.
Info:
MacBook Pro, iOS 8.1.1
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Apr 19, 2008
how to turn the light off while the macbook is in standby mode?
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Oct 22, 2008
I Had my light up keyboard on then it just turned off. Then when i went to press the f6 button the logo came up but with a slash through it. Why cant i turn it on? It has been on every time i use my computer
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Dec 8, 2008
I'm only posting this to continue my procrastination of starting homework which is due tomorrow. Ok, so recently I've been asking on these forums how to access my Macbook using my iPod Touch. Being able to fully access my Macbook when I'm 20 miles away at my University is a huge benefit when I realize I forgot an important essay or homework. I discovered I just have to open up port 5900, etc etc, to get into my Macbook from anywhere. It was too much trouble and now I just use [URL] which works as well, though don't think as fast. Well, this works wonders since I've already emailed myself 2 important Keynotes i've create and accessed them from my college and presented them without even having my computer on me.
Well, recently when I get home at night some times it smells strongly of marijuana. Odd since I don't smoke it but my cousin does. He has access to my place and I say he can head over, even if i'm not home and chill, but under any circumstances no smoking. Well, I wanted to use the iSight cam w/ Photo Booth while I'm at the college to see if he indeed was getting high in my living room but before I tested it, I need to get rid of the green light on my Macbook: Getting Rid of The Green Light. Ok, so we're not really turning off the green light here. I looked for hours on how to do this and instead ran into a lot of advice, especially on MacRumors forums, to just white out or tape a small white square over the dot when the green light comes through.
Don't attempt the white out. It'll just go through. As for the white small square...it's completely obvious so don't try that either. Instead, do this:
1. Get a thin card, like a debit card and gently remove the white frame from your macbook. Attached to the back of the frame will be a bunch of these little gray rectangles that hold that frame to the outer part of the macbook. You'll have to take these off gently from the frame and pop them back onto their corresponding places within the Macbook. Easy enough.
2. Then what you do it get a sheet of white paper, cut a super small piece and fold it many times over. Not too thick or the frame won't click back in that area normally.
3. Place it snuggly where the green light turns on and even suggest getting a piece of tape just as small to hold it in place.
4. Turn on Photo booth just to test out if the light goes through. It may but really test it by placing the frame over it, and then seeing if the light goes through.
5. If it doesn't great. Place the frame back on and you're set!
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Feb 15, 2012
My daughter said she left her mac pro on the charger before school.  She came home and mac will not turn on and no green light on charger. Not sure if there is something that I can do to test it before buying new charger.
Info:
MacBook Pro
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Apr 4, 2012
My back light won't turn off when i shut the lid of my mac book pro is there a setting to change this?, My back light won't turn off when i shut the lid of my mac book pro is there a setting to change this?
Info:
MacBook Pro
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Jun 30, 2012
Last week I spilt tea (english tea with soy milk) on it while it was CLOSED, but it got into the side plugs and etc. I turned it off, and put it immediately in rice to dry it out, and later took the battery out as well. I tried to turn it on, but nothing except for a very pale green light coming from the plug itself. After many attemps of turining it on still no success. A roommate opened it up and cleaned the rusty bits with pure alcohol, but still it won't turn on. The rust was only close to the part where the plug goes.Does anyone know if it's just a matter of replacing a piece or something more expensive? I'd like to find out before I go to a repair place.
Info:
MacBook, Black MacBook
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Dec 4, 2010
I recently noticed something rather peculiar about my MacBook. When I put my computer to sleep, the sleep light never does what it used to. As far as I remember, the light is supposed to very bright, then go dim, and then go back to being bright correct? Well, since I installed the latest OS X update, I've noticed that my sleep light never gets dimmer. It just stays on full brightness all the time.
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Mar 6, 2010
So this morning I woke up and went to press the power button of my Macbook, but nothing happened. I noticed that there is no white IR light and the fan doesn't respond. I checked the battery, it was at full. The power cable was also green when i plugged it into the Macbook. However, it still wouldn't turn on.
Just a general comment, I use the Macbook as a printer server and to browse the internet, so nothing intensive is forced onto the Macbook.So then I tried resetting the SMU, didn't work. I tried turning it on with only battery , and then with only power source, both didn't work either.I have never spilled anything on this macbook, never dropped it, smashed it, or abused it in any way. However, it is 2 years old and I never bought Applecare (Usually, if something is defective, it will show within the first 30 days). I assume it's a logic board failure, and it's going to cost around 700 to fix (which i'd rather just get a new macbook).
I was wondering if anybody know of a reason why the logic board broke, or if there is any remedies that i haven't tried yet?Also, I'm thinking of pawning it off on ebay and then save up and wait for the Macbook Pro refresh. Does anyone have an estimate on how much I can get for a broken Macbook (screen is fine, 4gb of ram (i might replace it w/ 2gb instead) 250 gb HD (might replace with 80gb HD instead), 2.0 ghz c2d (prbly useless cuz the logic board is fried)
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Mar 1, 2012
I used my macbook charger to charge a mac book pro and now my macbook will not turn on. The green light shows on the charger but it will not turn on. I am not sure it is related but what should I do?
Info:
MacBook
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May 21, 2012
How to turn on a macbook when the light blinks and beeps 8-9 times but doesn't turn on after you push the power button.
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Jun 3, 2012
My Macbook Pro's charger when I plug it in turns on (green light then orange light) and after a few seconds it turns off and back on again. I tried unplugging it and plugging it back in after several seconds and I also tried different power outlets but it still doesn't work properly, I even tried restarting the SMC (Not sure if I did it right though). What could be the cause and I have a Macbook Pro 13" Late 2011 model running Intel Dual Core i5 Processor.
Info:
MacBook Pro, Mac OS X (10.7.4)
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Jun 6, 2012
My macbook will not turn on and when i try to charge it the light stays green (faintly). I need it for my finals but i cant get it to turn on!
Info:
MacBook
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