I can't turn mac os X on, can anyone help?
I am unable to turn on my computer. It worked fine one day it just wouldn;t turn on at all. The fan had been running recently when it didn;t seem overheated. Any ideas would be greatly appreciated.
Help here > Intel-Based Apple Portables: Troubleshooting a computer that will not power on
Similar Messages
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Hi can anyone help with a mac that had magnet put on it. I turned it on and then off but a white screen appears with a file with a question mark on it?
File icon with ? mark on it means it can't read from the hard drive. The hard drive is now wiped or bad. If just wiped then you will need to reinstall your operating system, OS X. If bad you will need to replace the drive.
Start with booting the computer from the OS X install DVD that came with your system. If the Mac came with Lion Pre-Installed then you use the Lion internet recovery system to reinstall (Hold down Command+r keys or Command+Option+r keys to boot the computer from over the internet to the Lion recovery HD system).
Good Luck. -
I just subscribed to imatch while logged in to iTunes on a mac computer that belongs to someone else. (I was logged in to MY iTunes) my iPhone will not turn on the MATCH function, saying I am no subscribed. I've powered off and on. can anyone help?
Hi,
I am having the same problem. Itunes reports that it's uploaded all the music etc.
When I turn the match function on, it says "you are not currently subscribed to itunes match".
I have restarted the phone and coputer, logged in & out several times to no avail.
Any ideas or suggestions? -
My mac won't recognize an external monitor. The screen Goes Blue Once, then goes blue again and the second monitor just turns off. I am using an HDMI adapter to a visio TV. I also have my xbox on the tv. Can anyone Help??
Lol, figured out the first part. Just for those who may be searching, when you click on the Display Preferences, and click on the arraingment tab... it not only shows where your two screens will be displayed, but the WHITE BAR at the top of one screen is the dock/toolbar. Click and hold to grab this and just slide it over to the screen you'd like it to be on.
You have to release it IN the screen box, not on top of it... and it should pop right over to the new (or old) screen. At any rate, you can put the dock on either (or any) screen that you prefer.
I am thinking of ordering more of these. Lol. 3 monitor setup seems like it would be crazy good.
Still looking for the answer to keeping the new 16" screen on the right without switching between screen #s with that... not expose... Lion feature.
Thanks. Hope my other question has an answer out here.
Paul H -
I press the on button and the white light wont turn on, I don´t hear and fan noise, or the beeping sound. This Mac is 1 1/2 months old. Can anyone help.
You are under warranty. You can call Applecare and get advice from the tech rep, or you can bring it to an Apple store or authorized Apple service provider.
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Hi, a dvd got stuck in my mac mini and after looking at solutions online and attempting some not only has the dvd not ejected but my mac wont turn on properly, there is simply a white blank screen, can anyone help me please? thanks
Hi Claire, sounds dire, but some things to try...
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
http://support.apple.com/kb/HT3964 -
My Mac Pros sound keeps turning off and on while listeneing to music and it wont let me sample songs on amazon. Can anyone help?
Hello tactech,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
Troubleshooting issues with no audio from built-in speakers on Macs
http://support.apple.com/kb/ts1574
Best of luck,
Mario -
I have a Macbook Pro that has Windows loaded. I use that most often and it opens immediately upon opening the computer. I can't remember how to get back to the Mac side of the computer and want to begin to use it as well. Can anyone help me remember the buttons to push ?
Thank youHold down the Option key when starting up, or restarting. You'll be presented with the Startup Manager, which is a simple graphic of the drives you can boot to. Double click the drive which has OS X on it. Once in OS X, go to the System Preferences and click on Startup Disk. Choose the drive you always want the Mac to boot to first.
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PB suddenly crashes! Black screen. Wont turn back on. Can anyone HELP ???
Hello everyone!
My 16months old 12" PowerBook suddenly crashed last time when I was working with it. I didnt do anything particularly challenging. The PB didn't get extremely slow or anything. All of a sudden it just turned down within a second. and the display went black. By the way, it was not running on battery but over power cord.
Then right away after crashing there was this weird high-pitched sound coming from the backside of the PB. When I tried to turn it back on the sound muted, still the PB wouldn't go back on.
It felt as if it wast all the way shut down, and not really on either.
I tried the key combination shiftoption+applepower button (or whatever it was) to restart it, but it didnt work.
so I took off the power adapter cord, and took out the battery.
After putting the battery back in i was able to turn the PB back on.
All this happened 3 times now.
very weird and very frightening!! Does anyone have a clue?? Can anyone help???
PLEEEASE!!
thanx.
PowerBook G4 Mac OS X (10.4.4) 1.33 GHz, 512 MB, Mini-DVIThat's not much to go on, but here are a couple of guesses that may lead you in the right direction:
1) The high pitched noise could have been a fan dying, followed by the CPU overheating and the system shutting itself off to prevent damage. If you left it sitting for a couple of hours and it rebooted okay (or started to), and then crashed again shortly thereafter then it's probably a fan.
2) If now the system sounds and feels like it's booting up normally, but with nothing on the screen at all, the lamp (not sure what the technical term is) for the LCD could have gone bad. This happened to me a while back. If you have an external monitor available, try plugging it in and see if the machine comes up on that display.
Either way you're almost certainly going to want to take it in to be serviced. Best of luck! -
I am getting no signal to my dj mixer using m-audio firewire audiophile sound card connected to my mac book pro using Traktor Dj software can anyone help?
The firewire port reads the dj software and I can hear music playing through the sound card when I plug my headphones into it but there is no signal to the hardware (my dj mixer).
I have reset the firewire by turning off my mac book pro for a few hours and can see the sound card device in the fire wire section after clicking on the apple icon on the top left corner of my mac.
My dj mixer works on another mac computer with the same soundcard and different firewire cable.
Hope someone can help
Thanks
Waynekmiddlet88,
yes, it could be due to nearly anything listed in your kernel extensions, startup items, launch daemons, launch agents, or user items above. Please check all of your installed third-party software to make sure that the versions which are installed on your MacBook Pro are compatible with Mavericks; uninstall every software package which isn’t Mavericks-compatible. After you’ve done that, boot into Safe mode, and see if you still get the beach ball of doom there. If it doesn’t appear there, restart normally and see if it appears then. -
My Mac starts itself automatically around 1:00 am about ever other night. I don't want it to do that. I had a backup program installed once that was set to do the backup at that time, but I have long since uninstalled that program. Yet the computer still powers on automatically. I checked in the control panels and don't see it set to do that. I used the Console program to check my log, but I don't know how to read what it says. Here are the log messages from the last time the computer started itself automatically:
Sep 16 00:58:00 tio-E kernel[0]: System Sleep
Sep 16 00:58:00 tio-E kernel[0]: Enabling XMM register save/restore and SSE/SSE2 opcodes
Sep 16 00:58:00 tio-E kernel[0]: Started CPU 01
Sep 16 00:58:00 tio-E kernel[0]: IOBluetoothHCIController::restartShutdownWL this is a wake from sleep
Sep 16 00:58:00 tio-E kernel[0]: System Wake
Sep 16 00:58:09 tio-E lookupd[213]: lookupd (version 369.8) starting - Mon Sep 16 00:58:09 2013
Sep 16 00:58:09 tio-E configd[37]: rtmsg: error writing to routing socket
Sep 16 00:58:26 tio-E /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport: Could not find "CPL" on any channel (directed scan)
Sep 16 00:58:26 tio-E /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport: Could not find "CPL" on channel(s) 6
Sep 16 00:58:37 tio-E /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport: Could not find "default" on any channel (directed scan)
Sep 16 00:58:37 tio-E /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport: Could not find "default" on channel(s) 6
Sep 16 00:58:40 tio-E kernel[0]: WLC_E_COUNTRY_CODE_CHANGED
Sep 16 00:58:40 tio-E kernel[0]: en1: 802.11d country code set to 'US'.
Sep 16 00:58:40 tio-E kernel[0]: en1: Supported channels 1 2 3 4 5 6 7 8 9 10 11 5 6 7 8 9 10 11 1 2 3 4 5 6 7 36 40 44 48 52 56 60 64 149 153 157 161 165 40 48 56 64 153 161 36 44 52 60 149 157
Sep 16 00:58:41 tio-E kernel[0]: MAC AUTH succeeded
Sep 16 00:58:45 tio-E configd[37]: posting notification com.apple.system.config.network_change
Sep 16 00:58:45 tio-E lookupd[218]: lookupd (version 369.8) starting - Mon Sep 16 00:58:45 2013
Can anyone help me get to the root of this problem?Hi Edwardo,
Perhaps there's remnants of that App you're not aware of... what was it?
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts (Users & Groups in later OSX versions)>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons -
can anyone help, my late 2010 MBA's - OS X Lion 10.7.5 wifi won't turn on after a deep sleep.. thanks..!
Hi John,
Thanks for the additional information. What I would try next is resetting System Management Controller:
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
You can find the full article here:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/ht3964
If this still doesn't help, it would be time to take it in to be looked at. You can setup an appointment at a Genius Bar by clicking on the following link:
http://www.apple.com/retail/geniusbar/
Best,
Sheila M. -
I have updated my mac book pro and am trying to get icloud and the new lion version. The lion version will not download and my biggest problem is finding icloud on my system preference. Can anyone help me?
Welcome to the Apple Support Communities
Connecting your MacBook Pro and your MacBook Air will be the fastest way, but you have to spend money on cables and adapters (also, your MacBook Pro doesn't support Thunderbolt).
As you have a Time Capsule, one thing you can do is to start your MacBook Pro and make a Time Machine backup. Then, turn on your MacBook Air and set it up. Setup Assistant will ask you to restore a backup, so select the option to restore the backup from the Time Capsule and be patient. This can take a lot of time if you have to migrate a lot of files -
My new mac is freezing on start up. after the initial start up, i did software updates and now its frozen. can anyone help?
If this is really a NEW Macbook Pro and this happened the first time you turned it on and did Software Updated then you need to take it back to where you bought it and RETURN IT FOR A FULL REFUND. Then decide whether to buy another NEW unit or move on to something else.
Apple has a No Questions Asked 14 day return policy. Take advantage of that and return this unit. This type of thing should NOT happen on a Brand new notebook. -
hello there, i have a major issue with my iphone 3g, it ran out of battery yesterday and now it won't charge or turn on at all, can anyone help??
Apple Does Not recommend that. Please Read.
http://support.apple.com/kb/HT1490
From that article
"Portables with built-in batteries"
Current Apple portable computer batteries are pre-calibrated and do not require the calibration procedure outlined in this article. These computers use batteries that should be replaced only by an Apple Authorized Service Provider.
MacBook
MacBook (13-inch, Late 2009) and later
MacBook Air
MacBook Air (all models)
MacBook Pro
MacBook Pro with Retina display (all models)
MacBook Pro (13-inch, Mid 2009) and later
MacBook Pro (15-inch, Mid 2009) and later
MacBook Pro (17-inch, Early 2009) and later
Thanks.
Allan Mac wrote:
Apple recommend calibrating the battery when you buy a new Macbook and then every few months, or monthly if it used on mains all the time. This, as Apple says is to keep the battery operating at maximum efficiency. When the battery discharges and shuts the macbook down, it still has reserve power for a good number of hours. There is also a logic board battery to hold various settings.
I rather think I will take Apples advice on using their equipment not yours, but I would be intrigued to discover what is it you know that Apple doesnt about its batteries?
Allan -
Mac book pro start up, white screen pops up and it don't process any further! Can anyone help?
When my laptop was updating the software it was stuck on installing the updates. I held the power button then turned the laptop back on! It makes the on sound but stay on the white screen! Can anyone help?
Hey Antonioaok,
Welcome to the Apple Support Communities. If you are getting the white screen when you start up, there are a few steps that can be done. The first one would be resetting your NVRAM
About NVRAM and PRAM
http://support.apple.com/kb/HT1379
Resetting NVRAM / PRAM
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
The next step, if it does not boot to your operating system would be to attempt to boot into safe mode. These steps are also based on the fact that your profile states you are running Snow Leopard.
Mac OS X 10.6: Starting up in safe mode
http://support.apple.com/kb/PH6455
To start up in safe mode:
Shut down your computer and wait 10 seconds.
Press the power button.
Immediately after you hear the startup tone, hold down the Shift key. You should press the Shift key as soon as possible after you hear the startup tone, but not before.
Release the Shift key when you see the gray Apple logo and progress indicator (spinning gear).
To leave safe mode, restart the computer normally without holding down any keys during startup.
If after that, you were still not able to get into your operating system, the last step would be trying to reinstall the operating system.
Mac OS X 10.6: Reinstalling Mac OS X
http://support.apple.com/kb/PH6606
Regards,
-Norm G.
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