Computer tries to boot but then turns off

I had to force shut down my computer, now it won't come back on. It comes on, and gives me a spinning wheel and a progress bar across the bottom. The bar doesn't get very far and then the computer just turns off. Tried to start in safe mofe and it did the same thing. Was on for a while and then just turned off. Not sure what to do. Please help!

The automatic fsck is trying to repair a corruption problem with the drive and failing.
Good news, it sounds like a software problem and less likely a hardware one, however I suspect the Macintsh HD partiton which holds OS X, programs and your files will have to be erased.
If you don't have a couple of backups of your data off the machine (don't only trust TimeMachine because you can't verify it and it can restore crap) then you may need to do this first.
.Create a data recovery/undelete external boot drive
Then run through these steps and depending how far you get...depends if you do the above or if it will boot enough you can grab files manually to a storage drive before further action.
..Step by Step to fix your Mac
Most commonly used backup methods
If this is too much for you, then there are local PC/Mac software repair shops that also do data recovery as long as you didn't use Filevault or encryption.

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My curve begins to reset but then turns off!

I had to manually reset my Blackberry yesterday. The reset screen came up with the little white bar beginning to load. however after about 10 seconds the whole phone just shut down like it ran out of pwer. The phone continues to reset itself for about 10 seconds but contionue to turn itself off
HELP??

The automatic fsck is trying to repair a corruption problem with the drive and failing.
Good news, it sounds like a software problem and less likely a hardware one, however I suspect the Macintsh HD partiton which holds OS X, programs and your files will have to be erased.
If you don't have a couple of backups of your data off the machine (don't only trust TimeMachine because you can't verify it and it can restore crap) then you may need to do this first.
.Create a data recovery/undelete external boot drive
Then run through these steps and depending how far you get...depends if you do the above or if it will boot enough you can grab files manually to a storage drive before further action.
..Step by Step to fix your Mac
Most commonly used backup methods
If this is too much for you, then there are local PC/Mac software repair shops that also do data recovery as long as you didn't use Filevault or encryption.

I dropped my iphone the logo appears for 3-4 seconds but then turned off

my maid recently dropped my iphone 5s now there is no scratch on LCD but the iphone get on for 3-4 seconds the logo also appears but then the screen get off the screen only turn on at charging

You have a big problem. Apple does not do business in Pakistan. So there is no way you can get Apple to fix it unless you take it back to the US. Mailing it back won't work; they will not accept shipments from outside of the country. About your only other option is to take it to a reputable repair shop in Pakistan. And hope you are lucky, because Apple does not sell spare parts, so any repair will not use authentic parts.

My iPhone 4s shows battery of 40%, but then turns off. When plugged in to charge, it shows the 40%. Why?

How to extend battery life?

Hi Micsher,
Welcome to the Support Communities! The information below may help you troubleshoot your iPhone battery life issue:
iPhone Battery and Power - Apple Support
http://www.apple.com/support/iphone/repair/battery-power/
Battery & power
Is your iPhone battery draining too quickly or not holding a charge? Try restarting it first. You can also adjust several settings to extend the battery life of your iPhone.
Restarting your iPhone
Hold down the Sleep/Wake button on top of your iPhone, then drag the slider to turn it off. Press the button again to restart.
The article below explains how to get the most out of the battery life of your iPhone. I've included some of the highlights below ... click on the link for complete information.
Apple - Batteries - iPhone
http://www.apple.com/batteries/iphone.html
Optimize Your Settings
Depending on how they are set, a few features may decrease your iPhone battery life. The tips below apply to an iPhone running iOS 7.0 or later.
Enable Wi-Fi: Having Wi-Fi enabled helps consume less power when doing activities that access data. Go to Settings > Wi-Fi and log in to a Wi-Fi network.
Adjust brightness: Dim the screen or turn on Auto-Brightness to extend battery life. Turning on Auto-Brightness allows the screen to adjust based on lighting conditions.
Fetch new data less frequently: The more frequently email or other data is fetched, the quicker your battery may drain. To fetch data manually: Go to Settings > Mail, Contacts, Calendars > Fetch New Data and tap Manually.
Turn off push notifications: Apps with Push Notification alert you of new data, which may impact battery life. To disable, go to Settings > Notifications, choose the app you want to disable, and do the following:
Change Alert Style to None.
Turn Badge App Icon off.
Turn Sounds off.
Note: New data will be received when you open the app.
Minimize use of location services: Apps that actively use location services, such as Maps, may reduce battery life. You can see which applications have recently used location services by going to Settings > Privacy > Location Services.
Use Airplane Mode in low- or no-coverage areas: Your iPhone always tries to maintain a connection with the cellular network, which may use more power in low- or no-coverage areas. Turn on Airplane Mode to increase battery life in these situations.
Viewing Usage Statistics
Knowing and understanding your iPhone usage can help you better manage your battery life. To view your iPhone usage statistics, go to Settings > General > Usage. Under “Time since last full charge”:
Usage: Amount of time iPhone has been awake and in use since the last full charge. iPhone is awake when you’re on a call, using email, listening to music, browsing the web, or sending and receiving text messages, or during certain background tasks such as auto-checking email.
Standby: Amount of time iPhone has been powered on since its last full charge, including the time the phone has been asleep.
Cheers,
- Judy

My iPhone will turn on, let me log in and then turn off. Them it will sometimes show its turning on but then turn off before it is completed..

I have the information in the question. Thank you.

Did you try resetting?
Do a reset (Hold Sleep/Wake and Home buttons about 10 secs or more till Apple logo appears, ignore the Slide to Power Off that appears)
Note: You will not lose any data.

Iphone 4s, 6.0.1, if my phone completely runs out of battery, I connect to charge, charging symbol appears under battery but then turns off after 3-5 secs, possible fix or known issue?

As stated above

Do not let the battery run completely dead, this is not good for lithium ion batteries.

MacBook pro won't boot up Keeps turning off

MacBook pro won't boot up. When power button pressed the white screen w apple comes on w progress bar but shuts off before bar completed. If I move cursor or hit buttons it boots but will turn off if cursor stops Moving or stop pushing buttons. Just started happening. Ran hardware test and all shows ok. Any ideas??

Thanks for all the help; however, I still continue to have problems booting off of any other media.
I've tried the Apple CD w/ no success - I made an image of the apple cd and restored it to a USB drive, and it won't boot. I've tested both methods on another mac, and both options boot fine.
I'm going with my last restort here and am going to install OSX on a portable USB HD, and try to boot off of that (no clue if it will work given the outcomes of the other things I have tried). From there I'm going to backup the HD, and try DW as suggested.
Any thoughts as to why the mac refuses to boot off of any other media? It always boots halfway and then tells me I need to shutdown my mac.
Thanks again,

Ipad charges and turns off, turns on then turns off again

HI, i am suddenly having problems with my iPad. its approx 1 1/2 years old. Last night it went flat, while playing candy crush. so i put it on charge last night, this morning its saying its flat (so a full 7hrs on charge). so all day from 8am to 1pm its on charge, but still saying its flat (comes up with a battery thing thats red). so i noticed during charging, it will turn on for a little bit and then suddenly turn off and will do this a lot of times. i have tried the different cords and charges. plus i have connected it the iMac as well. when it suddenly "loads up" to turn on i have tried the "resetting" but it turns off quicker than i can do it. i have even tried it while its off, but to no avail.
so it is recognising charging but won't charge. it will turn on, then off, then on, then off. is there anything i can do really? iTunes won't recognise it. when its plugged it.
any ideas or help?

Howdy Stevie,
As someone who uses my iPad daily for everything from work to recreation, I know I would be unhappy if mine acted the way your iPad is, apparently not charging and being unable to turn on. Let's see if we can get you back up and running.
I would suggest that you troubleshoot using the steps in this article -
If your iOS device restarts, displays the Apple logo, or powers off while you're using it - Apple Support
Thanks for using Apple Support Communities.
Best,
Brett L

Laptop load screen appears then turns off

I turn my mac book pro on the load screen turns on and loads but then turns off.
Any suggestions would help.
Cheers

- Try starting in Safe Mode
OS X: What is Safe Boot, Safe Mode?
- Reset the SMC and NVRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
About NVRAM and PRAM
- Boot to Recovery and repair the startup disk via Disk Utility
OS X: About OS X Recovery - Apple Support
Reinstall the OS
OS X Yosemite: Reinstall OS X
BTW, this is the Mac Pro desktop forum

My ipad is flat and when I plug it in to charge it just repeatedly turns on and then turns off but isn't charging. I tried to plug into itunes but it just goes through the same ritual and can't maintain connection to itunes. What should I do ?

My ipad is flat and when I plug it in to charge it just repeatedly turns on and then turns off but isn't charging. I tried to plug into itunes but it just goes through the same ritual and can't maintain connection to itunes. What should I do ?

1. Reset iPad
2. Try another wall socket
3. Try another cable (make sure it's an original Apple cable)
4. Try another charger (make sure it's an original Apple charger)
5. Clean Lightning port with compress air or new paint brush

So i tried updating my iphone 4 and my whole computer crashed and when i tried to turn it on, it would just show the apple logo and load, then turn off

so i tried updating my iphone 4 and my whole computer crashed and when i tried to turn it on, it would just show the apple logo and load, then turn off.

See here for
Unable to Update or Restore
http://support.apple.com/kb/HT1808

Accidentally deleted startupitems from library/startupitems on macbook now the computer wont startup and i get the grey startup loading screen with the apple symbol and a loading bar but wont load then turns off.

hi, please help.
Accidentally deleted startupitems from library/startupitems on macbook now the computer wont startup and i get the grey startup loading screen with the apple symbol and a loading bar but wont load then turns off.
i saved these files to a folder on the destop and then turned the computer off. oops!!! now computer wont start up
How do i put the startupitems back to this folder or beter yet get into the computer to fix this.
Please please help!!!

Reinstall OS X, either from disc or a recovery partition. You don't mention which version of OS X you're running so I don't know which it will be.

Mac book starts to boot, then turns off

I have Mac Book Pro (13", Yr2011) which will not boot. It has a 1TB HD which has been partitioned for Mt Lion (primary) and Snow Leopard. The computer has worked fine in this configuration. For about 6 wks, the computer was not used and apparently the battery charge depleted to zero. When an attempt was made to use the computer with battery only, the screen was just light gray with a circular wait icon. After several minutes with no change, the battery was noted to be discharged. A charger was connected, but there was no change in the screen. The computer was then turned off and left to fully charge. On first attempt to turn on, the computer did come to life. However, when attempting to Update software, it displayed No Internect connection - even though it was connected by ethernet. The computer was power cycled, however the screen then again only showed light gray with wait icon. Now when attempting to boot, the screen shows light gray, circular wait icon & horizontal bar graph indicating something is loading. After about several minutes, the bar graph fills & disappears, however, the screen remains light gray with wait icon - indefinitely. On a few attempts, the computer and screen simply turned off after about 30secs.
If I hold the Option key while powering on, then the Mac does boot ok to Snow Leopard. Apparently, the Mt Lion side of the HD was corrupted during the low battery boot appempt. The last time I backup MtLion was several months ago, so if I prefer not to reformat and reload from scratch.
Since the Mac did boot up once, I'm wondering if there is a way to recover without having to reformat and start again.
Don

Tough without the Install disc, but some things to try...
Does it boot to Single User Mode, CMD+s keys at bootup, if so try...
/sbin/fsck -fy
Repeat until it shows no errors fixed.
(Space between fsck AND -fy important).

TS2570 when i turn on my computer it stays on the grey screen and then turns off by itself. How can I fix that?

when i turn on my computer it stays on the grey screen and then turns off by itself. How can I fix that?

Hi , and a warm welcome to the forums!
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 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, (not Repair Permissions). 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 & clear caches.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.
If 10.7.0 or later...
Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.
Hold alt or option key at bootup, do asny boot choices show up?

HT4904 I need to repair my start up disc so I have to start up from installation disc. In doing so, my computer restarts, I hear the mac sound, then a grey screen and then turns off and goes on in this cycle endlessly. Why can't I restart from disc?

I need to repair my start up disc so I have to start up from installation disc. In doing so, my computer restarts, I hear the mac sound, then a grey screen and then turns off and goes on in this cycle endlessly. Why can't I restart from disc?

Booting From An OS X Installer Disc
1. Insert OS X Installer Disc into the optical drive.
2. Restart the computer.
3. Immediately after the chime press and hold down the "C" key.
4. Release the key when the spinning gear below the dark gray Apple
logo appears.
5. Wait for installer to finish loading.

Computer tries to boot but then turns off

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