Imac 2008 24 inch power off and reset no reason

Once i a while it turn off and back on with no reason. Turned off the bluetooh happens 1 a week vs 2 a day. What's your 2 cents thanks

Try resetting your SMC, http://support.apple.com/kb/HT3964 also try to repair/verify your hard drive with disk utilities.  http://support.apple.com/kb/HT1782

Similar Messages

  • HT201263 I tried to reset my iPhone (3gs) with deleting all data. When it power off and automatically again on then it is showing Apple logo only. Not restore and startup my phone. I tried to charge and not charging. What I should do now?

    I tried to reset my iPhone (3gs) with deleting all data. When it power off and automatically again on then it is showing Apple logo only. Not restore and startup my phone. iPhone alerming low charge and I tried to charge and not charging.
    What I should do now?

    Something has gone wrong. Turn your phone off, then force it into recovery mode:
    Leave the USB cable connected to your computer, but NOT your phone, iTunes running, press & hold the home button while connecting the USB cable to your dock connector, continue holding the home button until you see “Connect to iTunes” on the screen. You may now release the home button. iTunes should now display that it has detected your phone in recovery mode, if not quit and reopen iTunes. If you still don’t see the recovery message repeat these steps again. iTunes will give you the option to restore from a backup or set up as new. In your case, select "new".

  • Ipad 2 is stuck in soft reset cant power off and not recogized in itunes

    After deleting the Facebook app i did a soft reset on my ipad 2 and now it is stuck on the black apple screen. ipad will not power off and i have it plugged up to itunes and still nothing. Attempted multiple soft resets again. Please help.

    Reset iPad
    Hold down the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears
    Note: Data will not be affected.

  • I have been able to wake my macmini by hitting the space bar - but since installing 10.7.4 using the 1.4Gb combo this wake method no longer works. Now the macmini shuts down, and I have to switch mains power off and on again before powering up the macmini

    Since purchase of my macmini (2011 model) I have been able to wake it from sleep by hitting the (wired) keyboard space bar.
    However, I recently updated the OS to 10.7.4 using the combo (1.4Gb) update, since when I cannot wake the macmini in that way.
    Now, after putting the macmini to sleep, pressing the spacebar causes it to shut down.
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    I am by no means an expert, and have not been fiddling with settings, so I am in need of advice on what could need resetting to allow me to return to the previous simple 'wake up' approach!
    Thanks.

    Reset the SMC > Intel-based Macs: Resetting the System Management Controller (SMC)
    1. Shut down the computer.
    2. Unplug the computer's power cord.
    3. Wait fifteen seconds.
    4. Attach the computer's power cord.
    5. Wait five seconds, then press the power button to turn on the computer.
    Followed by resetting the PRAM > Resetting your Mac's PRAM and NVRAM
    1. Shut down the computer.
    2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
    3. Turn on the computer.
    4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
    5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
    6. Release the keys.
    Then if those do not fix the problem, you may need to reset your Energy Saver and Keyboard Preferences by readjusting them.

  • The password I use for installing downloaded applications or installing basically anything isn't working but I didn't change it or let alone touched it. How do I fix this? I'm on an iMac 21.5 inch, Mid 2011 and Mac OS X Version 10.7.3

    The password I use for installing downloaded applications or installing basically anything isn't working but I didn't change it or let alone touched it. How do I fix this? I'm on an iMac 21.5 inch Mid 2011 and Mac OS X Version 10.7.3

    I've no idea why it has stopped working, but you could reset it:
    http://osxdaily.com/2011/08/24/reset-mac-os-x-10-7-lion-password/

  • HT5278 Since updating my iPad 2 to IOS6 and activating my icloud for backup, my iPad has permanently locked. Message on screen is "iPad Not Backed Up". I click ok but no response. Cannot turn power off and cannot restore via my pc itunes. What are my opti

    Since updating my iPad 2 to IOS6 and activating my icloud for backup, my iPad has permanently locked. Message on screen is "iPad Not Backed Up". I click ok but no response. Cannot turn power off and cannot restore via my pc itunes. What are my options?

    Thanks to everyone who responded and related subject helped. Holding the home button and power button simultaneously for 10-15 seconds does unlock the screen. I can now use my ipad again. However, a futher problem has arisen since updating to IOS6 and activating icloud at same time, Although not sure if its related. The problem is that when connected to my PC the itunes message appears 'Cannot read ipad'. It instructs you to restore but keeps timing out after about 1 hour. This maybe internet issue but can't understand why itunes cannot read my ipad. May need to completely erase all content & reset. Or any other suggestions why this has happened?

  • Is power off and on again the same as 'reboting' iPhone?

    To reboot the iPhone due to playing a big game or whatever other reason - To refresh lets say.
    Is turning the power off and on again the exact same thing as holding down power and the home key together?
    Is there really any difference?
    -Frankie

    This is what I tell everyone.
    Think of it this way, the iPhone is more of a computer than a phone. It suffers from being a new OS and nobody can deny there are not bugs and memory leaks. The longer left running, the more things start to fail or slow down (I have had the iPhone since day one of original phone and I am just speaking from my experience). Thus I equate it to like when Windows95 came out...not sure of your age or if you remember those days...but back then it was a running joke of how many days you can keep Windows 95 running before you had to reboot. I am sorry to say but the iPhone is the same way right now (but getting better with a few hiccups back during the 2.0 release). So for me, I reboot daily when I leave in the morning and take it off the charger. By doing so I rarely see any lag or problems.
    A reset/reboot is:
    Go to Home Screen
    Press and Hold Home Button
    Keep holding and press and hold Lock Button
    Keep holding Both
    You will see Slide to Turn Off (Don't let go to slide, just keep holding)
    The phone will turn off (in time, but screen will look like it has some white lines)
    Keep Holding
    When you see the Apple Logo, you can let go.
    Turning off via the Slide to Turn off while good and fine to turn off, is more like the Sleep Mode on a computer. Thus any locked up issues in memory remain when you turn back on. A reboot as described is like doing a real Turn off and Turn On on a computer.
    You may also wish to read this tread about reboots and odd application behavior.
    http://discussions.apple.com/message.jspa?messageID=5851978#5851978

  • My imac osx snow leopard turns off and wont recover

    my imac osx snow leopard turns off and wont recover

    I have an IMAC 21.5"/3.06/2X2GB/500GB/4670 year2010 with snow leopard MAC OS X 10.6.8 Yes it spontaneously shuts down while working and I cannot restart unless I disconnect the power supply.

  • Since I upgraded my 5c to iOS 7.1.1 my apps randomly stop working. The only way to get them to work is to power off and on. Any suggestions?

    My apps including safari are randomly not able to access their servers. Then my wifi goes to E. I have to power off and on to make them work. What should I do?

    Double-press the HOME button. Then flick each screen image up to terminate the application and free up its memory. When all apps have been killed. reset the phone by holding the HOME and SLEEP buttons at the same time until an Apple logo appears.

  • Suddenly my ipod power off and it remained off

    Hi,
    My 4 day old ipod nano Suddenly fot power off and its remained same. Its not power off. I tried to connect with pc. It is not responding. I can't on it. I tried to restart it with the hold button on-off and holding the menu and center button 10 seconds. It is responding at all.
    Plz Help.

    your ipod is currently carrying very little battery, which is not sufficient to turn your iPod on, can you connect it with an iPod wall charger or an iPod speakers dock system i.e. iPod HiFi.
    If you cant find, please try to do a Reset while your iPod connecting with your PC

  • This mini is operating OSX 10.6.8 and trying to update to Mountain Lion but upgrade stops and a black overscreen displays saying to power off and power on.  The upgrade fails.  What's the problem?

    This mini is operating OSX 10.6.8 and trying to update to Mountain Lion but upgrade stops and a black overscreen displays saying to power off and power on.  The upgrade fails.  What's the problem?

    Hi Fred,
    Could be many things, we should start with this...
    "Try Disk Utility
    1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
    2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at the top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
    Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.
    3. Click the First Aid tab.
    4. Select your Mac OS X volume.
    5. Click Repair. Disk Utility checks and repairs the disk."
    http://docs.info.apple.com/article.html?artnum=106214
    Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
    (Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)

  • Macbook air is telling me to power off and power on again, keeps shutting down

    My macbook air keeps shutting down on its own and then tells me to power off and power on again. When i do this it shuts down again and shows me the same message

    like this: http://support.apple.com/kb/TS3742  ?

  • My iPhone 4S lost simcard reference several times a day and issue message invalid SimCard. I have already replaced simcard three times and not solve the problem. It's necessary to power off and power on to solve it. Could someone help me?

    My iPhone 4S lost simcard reference several times a day and issue message invalid SimCard. I have already replaced simcard three times and not solve the problem. It's necessary to power off and power on to solve it. Could someone help me?

    Return your phone to Apple for evaluation

  • My photosmart c4280 has an error and the screen says to turn power off and then on again.

    my photosmart c4280 has an error and the screen says to turn power off and then on again

    Please try temporary connecting your printer to some other power socket, without using any power extention or hub.
    If the same issue persists, contact the local HP Support center, as it seems like and hardware or Power Supply problem.
    Say thanks by clicking the Kudos thumb up in the post.
    If my post resolve your problem please mark it as an Accepted Solution

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    My iPhonw won't power off and I have no sound and all my volume controls disappear. Can anybody help me?

    i mean that after i use my phone it won't go to a black screen after a few minutes...i guess maybe its called to 'sleep' but the screen stays bright...the light doesnt dim.

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