My iPhone 4 shut down and won't turn on again.What should i do?

My iPhone 4 shut down and won't turn on again. I tried charging it and do it again...When i charge it , it opens the " Connect to iTunes" , when i switch to the computer to connect it , it doesn't work... It starts to the apple screen , and then just shuts down again. I tried holding the home and sleep/wake button at the same time..I tried everything. What should i do?

Your iPhone is going back and forth between recovery mode and powering on which is really strange.
Have you tried a hardware reset while its connected to your computer? This will force it back into recovery mode so that you can restore it. If restoring and setting up as new doesn't help, go ahead and take it to an Apple Store for a replacement

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IPhone shut down and won't turn back on

Hello everyone,
I've been enjoying my iPhone for quite some time and recently used the iPod function and docked the iPhone to my iPod Hi-Fi sound system...suddenly the screen goes all white and the phone shuts down. I tried to turn it back on and it wouldn't budge, i've attached it to the charger for about 4 hours now and still nothing. I've tried the home and power button reset but that didn't do anything...If anyone knows what's going on here, please let me know. Thanks for lookin!

If you have charged it directly to the USB on your computer, and not on a hub the only thing that I can surmise is that it is down beyond repair.
You cannot reset since there is no lock.
I suggest you take it to the nearest Apple Store or AT&T Store, wherever you bought the phone and see where that leads. Of course you can also call AppleCare.
mikeab

My iPhone shut off and won't turn back on. What should I do?

My iphone shut off and won't turn back on. What should I do?

sometimes if the battery drains completely you will need to leave it plugged into a charger for 10-15 minutes before you get any activity at all. this is normal

HT1349 my mothers iPhone shut down and didn't turn back on and it was not dead

my mothers iPhone shut down and didn't turn back on and it was not dead

See https://discussions.apple.com/docs/DOC-3763.

TS1538 my iphone shut down and will not turn on. how do i get it to turn on?

my iphone shut down and will not turn on. how do i get it to turn on?

Connect iPhone to Wall Charger for 10 minutes it may turn ON itself. If still OFF, keep on charger and Reset, hold both home and power buttons for about 20 seconds until the iPhone begins to start.

My iphone shut down and won't start up

my iphone shut down and won't start up. HELP!

Try #2 and #3 in link below. If neither work, you most likely have a hardware issue.
Basic troubleshooting steps
17" 2.2GHz i7 Quad-Core MacBook Pro  8G RAM  750G HD + OCZ Vertex 3 SSD Boot HD 
Got problems with your Apple iDevice-like iPhone, iPad or iPod touch? Try Troubleshooting 101
 In Memory of Steve Jobs 

HT4993 My iPhone 5 turned off and won't turn back on. what should i do about this?

My iPhone 5 turned off and won't turn back on. what should i do about this?

Hi SeanCam,
Welcome to the Support Communities!
The following article will provide some troubleshooting steps for this issue:
iPhone, iPad or iPod touch: Not responding or does not turn on
http://support.apple.com/kb/TS3281?viewlocale=en_US
Cheers!
- Judy

My Ipod nano 7th generation turned off and won't turn back on. what should I do?

my Ipod nano 7th generation turned off and won't turn back on. what should I do?

If you have done the reset and nothing appears and you are sure it still has a charge and it doesn't turn on, you may request for a replacement if it still covered by the warranty. Cheers!

IPhone 5 shut down and won't turn back on

My phones screen turned a blue/greenish color and shut down and will not turn back on :(

I'm having the same issue with my iPhone5. It just started yesterday afternoon. The "hard reset" as you suggested worked once. However, it shut down again only one hour later. It didn't turn on (even with the hard reset) for three hours when the hard reset worked again. I hooked it up to iTunes and restored my phone and thought that it would fix the issue. But after being on for about two hours, my screen got vertical lines then turned green and shut off again. I haven't been able to turn it back on no matter what I do all night and all day today.
It doesn't matter that the phone is plugged in or have 100% battery power. It just won't turn on again.
I have an appointment at my local Apple Genuis Bar, but I'm not sure what they can do as I'm not sure if this is a software or a hardware issue.

IPhone Shut off and won't turn back on

My iPhone 3GS just shut down and won't do anything. I've tried pressing the top button, toggling the top and bottom button, plugging in to charge it, and syncing it, but it just stays black and non-responsive. Any suggestions?

Home + Sleep does not restore. It simply resets you need to put your iPhone in recovery mode (hopefully you backup your phone frequently):
1. Open iTunes.
2. Connect iPhone to Computer.
3. Press and hold the Home and Sleep/Wake buttons simultaneously.
4. As soon as the screen goes black release the Sleep/Wake button BUT continue holding the home button until you see a pop up a message in iTunes telling you that it has detected an iPhone in recovery mode.
5. Sync and restore.
Hope this helps. Please let me know if it does not so I can provide more help.

My iPhone 4 shut down and won't turn back on, can I fix this?

iphone 4 turned off randomly and won't turn back on, how can I fix this?

Try holding down the lock and home button together for about 15 seconds

Hi everyone, so I was on my MacBook Pro 10 mins ago and it all of a sudden shut down and won't turn back on? I haven't had it backed up for a while now but does anyone know what could have possibly happened and if it will affect my hard drive?

My MacBook Pro 13inch won't turn on? It randomly shut down itself and won't turn on!!? Will it affect my back up? Hard drive disk? Because it has all my work and personal things I really need on there! Please if anyone can help me!!

TimeMachine 101
https://support.apple.com/kb/HT1427
http://www.apple.com/support/timemachine
Mac OS X & Mountain Lion Community
https://discussions.apple.com/community/mac_os
https://discussions.apple.com/community/mac_os/os_x_mountain_lion?view=discussio ns
Recovery Mode
http://support.apple.com/kb/HT4718
ExpressLane
https://expresslane.apple.com/
Startup Manager: How to select a startup volume
http://support.apple.com/kb/HT131
Troubleshooting: My computer won't turn on
https://support.apple.com/kb/TS1367
Direct you to the proper forum for MacBook :
MacBook Series Forums
https://discussions.apple.com/community/notebooks?view=discussions
http://www.apple.com/support/macbookpro
Mac OS X Forum
https://discussions.apple.com/community/mac_os?view=discussions
This forum deals with a desktop/tower 65lb Mac Pro
http://www.apple.com/support/macpro

HT4137 My iphone shut down and it wany turn back on and i already tried to reset it! What can I do to get it back on!

My iphone 4 shut down and I cant get it to turn back on and I alredy tried to reset it! What do I do to get it turned back on!

Hello Tammy 78,
It sounds like your phone will not power on after it turned itself off unexpectedly. I would use this section of the following article to help you resolve the issue:
iPhone: Hardware troubleshooting
http://support.apple.com/kb/ts2802
Will not turn on, will not turn on unless connected to power, or unexpected power off
Verify that the Sleep/Wake button functions. If it does not function, inspect it for signs of damage. If the button is damaged or is not functioning when pressed, seek service.
Check if a Liquid Contact Indicator (LCI) is activated or there are signs of corrosion. Learn about LCIs and corrosion.
Connect the iPhone to the iPhone's USB power adapter and let it charge for at least ten minutes.
After at least 30 minutes, if:
The home screen appears: The iPhone should be working. Update to the latest version of iOS if necessary. Continue charging it until it is completely charged and you see this battery icon in the upper-right corner of the screen . Then unplug the phone from power. If it immediately turns off, seek service.
The low-battery image appears, even after the phone has charged for at least 20 minutes: See "iPhone displays the low-battery image and is unresponsive" symptom in this article.
Something other than the Home screen or Low Battery image appears, continue with this article for further troubleshooting steps.
If the iPhone did not turn on, reset it while connected to the iPhone USB power adapter.
If the display turns on, go to step 4.
If the display remains black, go to next step.
Connect the iPhone to a computer and open iTunes. If iTunes recognizes the iPhone and indicates that it is in recovery mode, attempt to restore the iPhone. If the iPhone doesn't appear in iTunes or if you have difficulties in restoring the iPhone, see this article for further assistance.
If restoring the iPhone resolved the issue, go to step 4. If restoring the iPhone did not solve the issue, seek service.
Thank you for using Apple Support Communities.
All the very best,
Sterling

MacBook randomly shut down, and won't turn back on

First of all, hello. Secondly, I've got a problem with my MacBook: about half an hour ago, it randomly shut down and when I tried to turn it back on, it didn't. Instead, the backlight kept flickering at the tempo that something inside the computer was "clicking", and the longer I held the power button, the more "clicks" there were. Needless to say, I've tried charging the battery, resetting the SMC, and to no avail: I still can't power it up, even when I don't use my battery. Whether I use it or not, the MacBook still "clicks" during my pressing of the power button and stops "clicking" when I release it. My MacBook is a year old. Can someone help me out here?

Me too. Any resolution? I don't want to take it to my local apple place because they're retards, but according to the info on my warranty that's the only place available. Can't believe they don't have an RMA service direct to Cupertino, what a joke.

When unplugged my MBP randomly shuts down and won't start up again

When my MBP is unplugged it randomly shuts off and won't restart. To get it to boot up again I have to plug it in.
Today I was using my computer for about 15 minutes unplugged and it just shut down by itself. I was right in the middle of typing something and it just cut out. The other weird thing is I don't get a low battery warning, nothing, it just shuts down.
Then I press the power button to restart and I get nothing. Even when I pull the battery out and put it back in nothing. I pressed the battery level button and it blinked rapidly on the lowest 2 lights. Keep in mind I was using my computer unplugged for only 15 minutes immediately after unplugging it from the wall after it had been charing for 15+ hours.
This makes no sense. Please help me.
-Jacob

Sounds like a bad battery and/or problem with the PMU (power management unit) and/or memory.
"Half the start up sound" is a bad sign as it means it's failing the normal start up tests (I'd guess a Memory problem)
Reset the PMU and run the Hardware tests from Install DVD1 (hold down d at startup) and see what it reports.

My iPhone 4 shut down and won't turn on again.What should i do?

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