I cannot power up my laptop?

I cannot power up my laptop - any ideas?

  Reset PRAM.   http://support.apple.com/kb/PH18761
Reset SMC.     http://support.apple.com/kb/HT3964
Choose the  appropriate method.
   Start up in Safe Mode.  http://support.apple.com/en-us/HT1564
Best.

Similar Messages

  • Laptop cannot power off

    My laptop cannot power it off.
    I use sudo poweroff to shut it down.
    Hard disk stop running but the power LED and wireless LED are still in light.
    I firstly thought it was the X problem. Then I check the /var/log/Xorg.0.log.old and found the tail of it was
    [ 2991.248] (II) evdev: Broadcom Corp: Close
    [ 2991.248] (II) UnloadModule: "evdev"
    [ 2991.248] (II) evdev: Logitech Unifying Device. Wireless PID:101d: Close
    [ 2991.248] (II) UnloadModule: "evdev"
    [ 2991.249] (II) evdev: AT Translated Set 2 keyboard: Close
    [ 2991.249] (II) UnloadModule: "evdev"
    [ 2991.249] (II) UnloadModule: "synaptics"
    [ 2991.249] (II) evdev: Dell WMI hotkeys: Close
    [ 2991.249] (II) UnloadModule: "evdev"
    [ 2992.303] Server terminated successfully (0). Closing log file.
    Which means X seems terminated correctly. Then I don't know to check what or check which log to find out the problem.
    Someone gives me a hint? Thx!
    However I found that if I don't startx after login, the poweroff works fine.
    After I startx after login, I cannot switch to text terminal anymore by using Ctrl+Alt+F1.
    After pressing Ctrl+Alt+F1 the screen was totally black and only by using Ctrl+Alt+F7 can bring me back to the gui interface.
    Last edited by bbq (2012-04-23 03:26:38)

    sealclubber wrote:
    sudo shutdown -h now
    maybe?
    It was the same as poweroff.
    However I found that if I don't startx after login, the poweroff works fine.
    After I startx after login, I cannot switch to text terminal anymore by using Ctrl+Shift+F1.
    After pressing Ctrl+Shift+F1 the screen was totally black and only by using Ctrl+Shift+F7 can bring me back to the gui interface.
    Someone has an idea?

  • Since the last update of Firefox I've a real problem. While Firefox is running or in use my Laptop total freezes. The resource tool stops and nothing works. I have to power off my laptop to get by this.

    Since the last update of Firefox I’ve a real problem. While Firefox is running or in use my Laptop total freezes. I was working a Word document and my laptop stops cold. The resource tool stops and nothing works. I have to power off my laptop to get around this. This has occurs numerous time and started after the last update to Firefox. I did install Skpe recently. My configuration is as follows:
    Forfox 10.0.2
    User Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2
    Windows 7 version 6.1 build 7600
    Processor p6100 64-bit
    Please help me it is very annoying

    uninstalled firefox ....deleted all files still remaining under mozilla firefox directory in program files ... to avoid having to reprogram all my settings, reisntall all addons as well .. I did not remove anything from mozilla firefox that is stored in either appdata or under the windows users directory (if any)
    ... the as suggested reinstalled the latest version of the firefox browser using the link you provided in the email ..; tested and several issues still remain present and unresolved ....
    so please this is urgent or I will have to jump browsers and start using chrome .. because we work 14 hours a day 6 (sometimes 7) days a week, to get ready for the launch of our newest venture and we cannot lose that much days on browser related issues ... so please instead of putting me through week long step process .. of do this .. do that .. can you please actually look into the issue from your end .. I use firefox for so many, many years thta I deserve this kind of support .. thnx Robert

  • MSI X48C PLatinum Cannot Power ON

    hello,
    I have big problem with my compie.
    At firtst when I boot up my compie this morning, system can boot up but when I play games just 1 minute, the system freeze. So, I suspect vga card/prosesor is wrong, then I clean their heatsink n change pasta in my proccesor. After finished, I boot. The system cannot post, it restarted over n over .
    So, I check the system again, until I take out one of my memory, there is a beep error, then i shutdown again, i reseated memory n again check another pheriperial. But after finished when I press power button, system cannot power on again, the fan is dead, n there is no respon at all . :(
    I already checking again n again, even i change pasta prosesor again, but the compie is still dead silent.
    Is there anyone can give any clue whats going on?
    My speks :
    mobo : MSI X48C platinum
    Proc : Q6600 (oc to 3,2 Ghz, i've try to reset but it cannot help)
    Memory : Team Xdark 6400 CL 4 4Gb
    Vga : HIS Radeon 4850
    Psu : Thermaltake Pure Power 420w (i've already check it, n still work fine)
    Thx Before

    Hi
    I have similar problem with my X48C and have taken me 6 months to stablelise the dame thing. this is the worst documented and manufactured board i ever come across.
    To enable this board to function properly. you need to update the bios to at lease V7.3      I was using the raid features for my 2x1T Samsung HD. Boy it sucks! i have to disable the raid reature and forever forget using it. It bring more pain than joy in using it. i use a back up utility is much better than using the raid feature. it is more efficient and appears to work faster without the raid feature turned on.
    use SATA IDE mode.
    Next the motherboard is so under Voltage that it create the random freeze in game mode. Thank to the various forum and i finally figure out why this stupid board freezes. Why? because it is an under voltage board. you must be on OverClock (OC) mode all the time. you need to manually set the CPU Voltage, Ram voltage and MCH voltages. When you are on OC mode you have to disable some of the neat features which are some of the feature of the Motherboard.
    You can leave most of the Bios setting to default. Except the {Cell Menu} option.This is the menu for to specify settings on Frequency/voltage and overclocking.( Well i am not trying to OC but I have to set this manually to achieve stability)
    Disable the Intel EIST mode. (Enhance intel Speedstep technology)
    Disable DOT Control (You can change this after you achieve system stability)
    you may want to refer to the menu when you setting up this.
    you can set your memory timing. at this stage i will leave it at default until you achieve system stability first.
    To set them refer to your memory manufacturer data sheet.
    On the voltage side. set CPU voltage to 1.5++V which is less than the Red option
                                set ram volatge to 1.79V ( i am using Corsiar 1600 2GBx2 which need at lease 1.8V) 1.79 is close
                                                                    enough.
                                                                    This setting works for Kingston ram KVR1333 series 
                                Set FSB Voltage to Auto
                                Set NB Voltage to 1.6++V
                                Set SB Voltage to 1.5++V
                                 leave the rest at AUTO
    Disable the Spread Spectum      (if you enable this it will create random freez in your normal operation (but less often.)
    i am using Intel E8500
    and Sapphire ATI 4870 1GB DDR5 for my video card.
     

  • Iphone 4S cannot power on and always be in recover mode when connecting itunes

    Hi,
    My iphone 4S recently doesn't work. It always shows apple logs and cannot power on. Even though I hard reset it, it still cannot power on. It is strange that when I connect it with iTunes, iTunes always says iPhone is in restore mode.then iPhone starts restoring. First time iTunes downloaded a file for restoring with 800M. Then iTunes start restoring. After about ten minutes, iPhone is restored. But when I use a app after several hours, it restarts immediately and then always shows apple logs.
    How can restore it completely and it won't return into restoring mode?
    I have created a new profile for the restoring, it still doesn't work.

    Hi,
    My iphone 4S recently doesn't work. It always shows apple logs and cannot power on. Even though I hard reset it, it still cannot power on. It is strange that when I connect it with iTunes, iTunes always says iPhone is in restore mode.then iPhone starts restoring. First time iTunes downloaded a file for restoring with 800M. Then iTunes start restoring. After about ten minutes, iPhone is restored. But when I use a app after several hours, it restarts immediately and then always shows apple logs.
    How can restore it completely and it won't return into restoring mode?
    I have created a new profile for the restoring, it still doesn't work.

  • My MacBook Pro is apparently powered on, but no screen display and cannot power off.  Cap lock works so keyboard is working but trackpad not responding.

    MacBook Pro is powered on but no screen display.  Track pad not working and cannot power off.  Have tried wireless mouse and no response.

    Bring it to an Apple store or AASP. Power down by holding the power button down.

  • HT1766 The screen shows problems with iCloud only choices are ignore or settings, however nothing I do will unlock it from this screen, cannot power off keeps that bubble on the screen. What do I do?

    The screen shows problems with iCloud only choices are ignore or settings, however nothing I do will unlock it from this screen, cannot power off keeps that bubble on the screen. What do I do?

    Try this now.
    Reboot the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons.

  • Questions: cannot connect via wireless laptop (router WR...

    Questions:
    cannot connect via wireless laptop (router WRK54G)
    cannot secure my network using WEP

    from the wired computer , access the router using http://192.168.1.1 . the default password is admin
    on the router ui , click on the "wireless" tab , change the ssid - any non-linksys name , channel - 11 , ssid broadcast - enabled
    go to the "wireless security" subtab .. change the security mode to WEP - 64 bits , default transmit key - 1 , enter a 10 digit hexadecimal number in the WEP key 1 field , passphrase - empty
    under the "advanced wireless settings" , change the beacon interval - 50 , Fragmentation threshold - 2304 , RTS threshold - 2307

  • I have a i phone 5 that we are getting a message not enough storage this Iphone cannot be backed up beacause there is not enough Icloud storage available.  But we cannot go to settings or close out the message . i cannot power off the phone or anthing

    i have a i phone 5 that we are getting a message not enough storage this Iphone cannot be backed up beacause there is not enough Icloud storage available.  But we cannot go to settings or close out the message . i cannot power off the phone or anthing. How do i clear this off the phone.

    First, press and hold the home and power buttons until the Apple icon appears.
    The problem could be that you don't have enough storage on the device itself, not on iCloud.  Go to Settings>General>Usage to see how much "Storage" you have available on the device.  Farther down the list is the available storage on iCloud.
    Also check:
    Go to Settings>iCloud>Storage & Backups>Manage Storage; there, tap the device you need info on and the resulting screen lists Backup Options with which apps store data on iCloud as well.  Tap Show All Apps to get the complete list of apps and MB used for backup storage.
    A device needs many MB of storage in order to perform a backup to iCloud.
    Also see:  http://support.apple.com/kb/ht4847`

  • HT1349 The screen to my ipod touch has gone completely white.  I cannot power it down or do anything at all.

    The screen to my ipod touch has gone completely white and I cannot power it down, or do anything.  I have it plugged into a power source right now

    Try a reset. Hold the Sleep and Home button down for about 10 seconds until you see the Apple logo.

  • Flashing Apple logo - does not come on and cannot power it down

    My husband has original iPhone from Dec '07. For some reason, while using it, his volume went low and he could not raise it. He tried powering it down to reset it but screen went black and then apple logo came on, then went black, then came on, flashing like that for several minutes before going black. He brought it home, i tried holding the sleep/wake button, but same result - flashing apple logos for few minutes, then black. Tried holding home button but also same result. Plugged into computer - it came on but the "Sync in Progress, do not disconnect" did not come on and phone did not register on desktop even though iTunes showed it. Anyways, did a complete restore with most recent software but again, we're still having the same problem. Phone works when plugged into computer, but not in the way it should and once you unplug it from the computer, sleep/wake button does nothing and cannot power it down. After restoring it, i again tried to power down holding sleep/wake button, but got flashing apple logos again. Any suggestions? Do we need to just take this in and have it looked at?

    Have you tried booting it to recovery? If you haven't, try these steps:
    1) Close iTunes and unplug and power down your iPhone
    2) Press and hold the home button
    3) Keeping the home button held down, plug your iPhone into your computer
    5) Keep the button held down until a recovery screen with a pic of a USB cable with an arrow pointing to an iTunes icon shows.
    6) Open iTunes and perform a restore
    If this doesn't solve your problem, you have to go to an Apple store and get it exchanged, as the above post said.
    Message was edited by: eaglesflight1258

  • Cannot upgrade CS6 on laptop.

    Cannot upgrade CS6 on laptop. CS5 runs just fine... Turned off firewall and scan. Now got to Serial Number upgrade. It took the cs56 upgrade number but not any of the previous numbers from your web site. I'm not at home so I don't have the first CS2 number. How do I get it to work?
    Thanks,
    Leroy Pettis

    Interesting, the rest of my question didn't show.  My original is CS2 (which I have at home in FL with the number). I've upgraded all along and have CS5.1 on my laptop now. I'm using CS6 for the 30 day trial period for now. The program should know that I have a legal CS5 and accept the CS6 number. I'll deal with it next month after I get back. Thanks.

  • After uninstall I cannot reinstall itunes on laptop with Win 7

    after uninstall I cannot reinstall itunes on laptop with Win 7 even though it says "Thank You for Downloading Itunes"

    Did you received this error when installing itunes???

  • Help urgently needed please ! My Iphone 4 is on silent vibration mode, received a call and has frozen with the Iphone unusable and yet vibrating. I have tried switching off, connecting to power, connecting to laptop and removing SIM card ???

    Help urgently needed please ! My Iphone 4 is on silent vibration mode, received a call and has frozen with the Iphone unusable and yet vibrating. I have tried switching off, connecting to power, connecting to laptop and removing SIM card ???

    Problem solved... just saw the answer in another thread... https://discussions.apple.com/message/13110222#13110222

  • I cant download anything including Updates, when i try to download a black box appears saying that i have to power off the laptop using the button, and it freezes, so i have no option but to power off. Please HELP

    I cant download anything including Updates, when i try to download a black box appears saying in 4 different languages that i have to power off the laptop using the button, and it freezes, so i have no option but to power off. Please HELP

    Well, at least it's good that there are no hardware issues - that's a relief and one problem area that you can check off.
    OK, so let's summarize so I can get a clear picture of what's going on. If you try to download something from your web browser, what happens? What if you try to download a small utility such as "EasyFind" from the App Store? Or is the problem specifically linked to downloading updates?
    I'm just trying to get a feel for if anything really means anything?
    Usually what you download from, say, a website, goes into your Downloads folder. It's the default folder for things like that. Apps from the App Store are downloaded to your Applications folder. And software updates are generally, I believe, held in a temporary folder so that they can be installed (in many cases) when you're asked to restart.
    It could be something as simple as repairing permissions on your start-up disk. You're running Snow Leopard, right? (That's what your profile says.) Try opening Disk Utility from your Utilities folder, selecting your boot disk and try verifying permissions. If you come up with some errors, try repairing permissions. After that, go ahead and verify your boot disk - you won't be able to repair it at this point, but at least you can see if you have any errors.
    Let me know about the anything and get back to me after you've verified and repaired permissions and verified your boot drive.
    Good luck,
    Clinton

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