Iphone 6 keeps shutting off randomly with battery left

my iPhone 6 is up to date its on IOS 8.1,3 and it keeps randomly shutting off with plenty of battery left like 30 or 40% and it will just turn off. I restarted it and backed it up and it continues to happen i don't know what to do.

Try to set it back to factory settings, without using the latest backup, in case the backup contained corrupt data.
Use iTunes to restore your iOS device to factory settings - Apple Support
If the problem comes back, your device needs to be checked by an Authorized Apple Service Provider or Apple:
iPhone - Contact Support - Apple Support

Similar Messages

Iphone 5 keeps shutting off randomly

Ever since i recently updated my iphone to the recent software update, it has been acting up. Like it shuts off randomly and shows these lines when it turns off, but thenreboots itself by itself

Hello srephaniee,
Thanks for using Apple Support Communities.
Please try the troubleshooting steps below to try and resolve this issue you're experiencing with your iPhone.
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 LCIsand 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.
My issue is still not resolved. What do I do next?
Contact Apple Support.
iPhone: Hardware troubleshooting
http://support.apple.com/kb/TS2802
Take care,
Alex H.

IPhone 3GS keeps shutting off randomly after OS4 Update

Right after updating my iPhone 3GS to the OS4, my iPhone randomly shuts off by itself. It will randomly shut down during a call, while downloading an app or typing an e-mail.
After it shuts off, I usually have to restart it and it will freeze frame at the loading (silver apple icon usually indicating it turning on) with many lines going accross the screen and red and yellow colors on the display. I have to re-shut it down to turn it back on and it doesn't even garantee that it will turn on properly.
The phone is brand new (I've had it less than 6 months) and it NEVER crashed before. I tried restoring to new, nothing changed. The phone has not been jailbroken either.
Has anyone been experiencing this as well? Any help will be greatly appreciated.
Thanks alot,
Mike

I am having the same problem, i upgraded my Fiances iPhone two days ago and ever since then we have had nothing but problems. We have restored factory setting a few times, Uninstalled all the itunes software and done all the other bit the websites tell you to but nothing seems to be working. I am desperate, can anyone help.

Mac Pro keeps shutting off randomly

Hey guys,
My Macbook Pro keeps shutting off randomly. Its been doing it for a few months now and I was finally able to restore it to factory settings to see if that would fix the problem but it hasnt. Sometimes it will shut off every five minutes, other times it will be maybe once an hour. I've noticed that it is more likely to shut off when I'm visiting youtube or watching a video/viewing a site with lots of pictures.
By "shutting off" I mean that the screen goes black and I have to hold down the power button until it completely turns off and then restart it.
When I turn my computer back on it sometimes has a reason for the problem, which I copied and pasted below:
Anonymous UUID:       727231A4-307D-84F0-6914-8EE94F89D815
Wed May 21 16:02:49 2014
panic(cpu 0 caller 0xffffff7f9ef9af7c): "GPU Panic: [<None>] 5 3 7f 0 0 0 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xc0000000 0xffffff80c45a5000 0x0a5480a2, D0, P3/4\n"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-3.5.26/src/Apple MuxControl/kext/GPUPanic.cpp:127
Backtrace (CPU 0), Frame : Return Address
0xffffff80b328b140 : 0xffffff801cc22fa9
0xffffff80b328b1c0 : 0xffffff7f9ef9af7c
0xffffff80b328b290 : 0xffffff7f9d625e7b
0xffffff80b328b350 : 0xffffff7f9d6ef46a
0xffffff80b328b390 : 0xffffff7f9d6ef4da
0xffffff80b328b400 : 0xffffff7f9d96e056
0xffffff80b328b530 : 0xffffff7f9d712b09
0xffffff80b328b550 : 0xffffff7f9d62c8cd
0xffffff80b328b600 : 0xffffff7f9d62a3d8
0xffffff80b328b800 : 0xffffff7f9d62b356
0xffffff80b328b8e0 : 0xffffff7f9e5ae9c2
0xffffff80b328b920 : 0xffffff7f9e5be37f
0xffffff80b328b940 : 0xffffff7f9e5ec33b
0xffffff80b328b980 : 0xffffff7f9e5ec39b
0xffffff80b328b9c0 : 0xffffff7f9e5c3e15
0xffffff80b328ba10 : 0xffffff7f9e58fb5e
0xffffff80b328baa0 : 0xffffff7f9e58bae7
0xffffff80b328bad0 : 0xffffff7f9e589636
0xffffff80b328bb00 : 0xffffff801d0ce0a3
0xffffff80b328bb90 : 0xffffff801d0cff9f
0xffffff80b328bbf0 : 0xffffff801d0cdabf
0xffffff80b328bd40 : 0xffffff801ccb66a8
0xffffff80b328be50 : 0xffffff801cc26bf1
0xffffff80b328be80 : 0xffffff801cc139f5
0xffffff80b328bef0 : 0xffffff801cc1e043
0xffffff80b328bf70 : 0xffffff801ccc989d
0xffffff80b328bfb0 : 0xffffff801ccf3c76
      Kernel Extensions in backtrace:
         com.apple.driver.AppleMuxControl(3.5.26)[B67CD59F-1344-37BC-8A9A-46D6D3DCA13D]@ 0xffffff7f9ef8c000->0xffffff7f9ef9ffff
            dependency: com.apple.driver.AppleGraphicsControl(3.5.26)[C0F9A79F-167E-3A68-873C-5CE17B97F B11]@0xffffff7f9ef84000
            dependency: com.apple.iokit.IOACPIFamily(1.4)[045D5D6F-AD1E-36DB-A249-A346E2B48E54]@0xfffff f7f9d52b000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[244D4E48-78E6-3369-8D76-285C66EF9BF4]@0xffffff 7f9d2be000
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[B889D3AB-CCC0-3FCD-A83E-D2E3E4CB537B]@0 xffffff7f9d583000
            dependency: com.apple.driver.AppleBacklightExpert(1.0.4)[E04639C5-D734-3AB3-A682-FE66694C66 53]@0xffffff7f9ef87000
         com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[6EB3FF52-A4F6-3496-AE9C-D89B00F DE504]@0xffffff7f9d5d6000->0xffffff7f9d83efff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[244D4E48-78E6-3369-8D76-285C66EF9BF4]@0xffffff 7f9d2be000
            dependency: com.apple.iokit.IONDRVSupport(2.4.1)[B93BBFC9-9ED5-3DDD-8CED-5EDA081BB997]@0xff ffff7f9d5c6000
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[B889D3AB-CCC0-3FCD-A83E-D2E3E4CB537B]@0 xffffff7f9d583000
         com.apple.GeForceTesla(8.2.4)[24ED915E-02F3-3A31-8502-6AA41FFCA420]@0xffffff7f9 e56e000->0xffffff7f9e638fff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[244D4E48-78E6-3369-8D76-285C66EF9BF4]@0xffffff 7f9d2be000
            dependency: com.apple.iokit.IONDRVSupport(2.4.1)[B93BBFC9-9ED5-3DDD-8CED-5EDA081BB997]@0xff ffff7f9d5c6000
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[B889D3AB-CCC0-3FCD-A83E-D2E3E4CB537B]@0 xffffff7f9d583000
            dependency: com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[6EB3FF52-A4F6-3496-AE9C-D89B00F DE504]@0xffffff7f9d5d6000
         com.apple.nvidia.classic.NVDANV50HalTesla(8.2.4)[B0E6AAA7-E970-3D81-8B43-145D56 A3A4AC]@0xffffff7f9d849000->0xffffff7f9daf2fff
            dependency: com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[6EB3FF52-A4F6-3496-AE9C-D89B00F DE504]@0xffffff7f9d5d6000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[244D4E48-78E6-3369-8D76-285C66EF9BF4]@0xffffff 7f9d2be000
BSD process name corresponding to current thread: WindowServer
Mac OS version:
13D65
Kernel version:
Darwin Kernel Version 13.2.0: Thu Apr 17 23:03:13 PDT 2014; root:xnu-2422.100.13~1/RELEASE_X86_64
Kernel UUID: ADD73AE6-88B0-32FB-A8BB-4F7C8BE4092E
Kernel slide:     0x000000001ca00000
Kernel text base: 0xffffff801cc00000
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 192974850507
last loaded kext at 28847231808: com.apple.driver.AudioAUUC          1.60 (addr 0xffffff7f9e7d6000, size 32768)
loaded kexts:
com.apple.driver.AudioAUUC          1.60
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.driver.AppleTyMCEDriver          1.0.2d2
com.apple.driver.AGPM          100.14.15
com.apple.filesystems.autofs          3.0
com.apple.iokit.IOBluetoothSerialManager          4.2.4f1
com.apple.driver.AppleMikeyHIDDriver          124
com.apple.driver.AppleHDAHardwareConfigDriver          2.6.1f2
com.apple.driver.AppleMikeyDriver          2.6.1f2
com.apple.driver.AppleHDA          2.6.1f2
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AppleUpstreamUserClient          3.5.13
com.apple.driver.AppleIntelHDGraphics          8.2.4
com.apple.driver.AppleHWAccess          1
com.apple.GeForceTesla          8.2.4
com.apple.driver.AppleBacklight          170.3.5
com.apple.driver.AppleMCCSControl          1.1.12
com.apple.iokit.IOBluetoothUSBDFU          4.2.4f1
com.apple.driver.AppleMuxControl          3.5.26
com.apple.driver.AppleLPC          1.7.0
com.apple.driver.AppleIntelMCEReporter          104
com.apple.driver.AppleIntelHDGraphicsFB          8.2.4
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.4f1
com.apple.driver.AppleSMCLMU          2.0.4d1
com.apple.nvidia.NVDAStartup          8.2.6
com.apple.driver.AppleSMCPDRC          1.0.0
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.SMCMotionSensor          3.0.4d1
com.apple.driver.AppleUSBTCButtons          240.2
com.apple.driver.AppleUSBCardReader          3.4.1
com.apple.driver.AppleIRController          325.7
com.apple.driver.AppleFileSystemDriver          3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          35
com.apple.driver.AppleUSBTCKeyEventDriver          240.2
com.apple.driver.AppleUSBTCKeyboard          240.2
com.apple.iokit.SCSITaskUserClient          3.6.6
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.5.1
com.apple.driver.AppleUSBHub          666.4.0
com.apple.driver.AppleFWOHCI          5.0.2
com.apple.iokit.AppleBCM5701Ethernet          3.8.1b2
com.apple.driver.AppleUSBUHCI          656.4.1
com.apple.driver.AppleAHCIPort          3.0.0
com.apple.driver.AirPort.Brcm4331          700.20.22
com.apple.driver.AppleUSBEHCI          660.4.0
com.apple.driver.AppleSmartBatteryManager          161.0.0
com.apple.driver.AppleRTC          2.0
com.apple.driver.AppleACPIButtons          2.0
com.apple.driver.AppleHPET          1.8
com.apple.driver.AppleSMBIOS          2.1
com.apple.driver.AppleACPIEC          2.0
com.apple.driver.AppleAPIC          1.7
com.apple.driver.AppleIntelCPUPowerManagementClient          217.92.1
com.apple.nke.applicationfirewall          153
com.apple.security.quarantine          3
com.apple.driver.AppleIntelCPUPowerManagement          217.92.1
com.apple.AppleGraphicsDeviceControl          3.5.26
com.apple.kext.triggers          1.0
com.apple.iokit.IOSerialFamily          10.0.7
com.apple.driver.DspFuncLib          2.6.1f2
com.apple.vecLib.kext          1.0.0
com.apple.iokit.IOAudioFamily          1.9.7fc2
com.apple.kext.OSvKernDSPLib          1.14
com.apple.iokit.IOSurface          91.1
com.apple.iokit.IOBluetoothFamily          4.2.4f1
com.apple.nvidia.classic.NVDANV50HalTesla          8.2.4
com.apple.nvidia.classic.NVDAResmanTesla          8.2.4
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.driver.AppleGraphicsControl          3.5.26
com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.4f1
com.apple.iokit.IOFireWireIP          2.2.6
com.apple.driver.AppleSMBusController          1.0.11d1
com.apple.driver.AppleSMBusPCI          1.0.12d1
com.apple.iokit.IONDRVSupport          2.4.1
com.apple.driver.AppleHDAController          2.6.1f2
com.apple.iokit.IOGraphicsFamily          2.4.1
com.apple.iokit.IOHDAFamily          2.6.1f2
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.IOPlatformPluginFamily          5.7.0d11
com.apple.driver.AppleSMC          3.1.8
com.apple.iokit.IOSCSIBlockCommandsDevice          3.6.6
com.apple.iokit.IOUSBMassStorageClass          3.6.0
com.apple.driver.AppleUSBMultitouch          240.9
com.apple.iokit.IOUSBHIDDriver          660.4.0
com.apple.driver.AppleUSBMergeNub          650.4.0
com.apple.driver.AppleUSBComposite          656.4.1
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.6.6
com.apple.iokit.IOBDStorageFamily          1.7
com.apple.iokit.IODVDStorageFamily          1.7.1
com.apple.iokit.IOCDStorageFamily          1.7.1
com.apple.iokit.IOAHCISerialATAPI          2.6.1
com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.6
com.apple.iokit.IOFireWireFamily          4.5.5
com.apple.iokit.IOEthernetAVBController          1.0.3b4
com.apple.driver.mDNSOffloadUserClient          1.0.1b5
com.apple.iokit.IOUSBUserClient          660.4.2
com.apple.iokit.IOAHCIFamily          2.6.5
com.apple.iokit.IO80211Family          630.35
com.apple.iokit.IONetworkingFamily          3.2
com.apple.iokit.IOUSBFamily          677.4.0
com.apple.driver.AppleEFINVRAM          2.0
com.apple.driver.AppleEFIRuntime          2.0
com.apple.iokit.IOHIDFamily          2.0.0
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          278.11
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.AppleKeyStore          2
com.apple.driver.DiskImages          371.1
com.apple.iokit.IOStorageFamily          1.9
com.apple.iokit.IOReportFamily          23
com.apple.driver.AppleFDEKeyStore          28.30
com.apple.driver.AppleACPIPlatform          2.0
com.apple.iokit.IOPCIFamily          2.9
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0
com.apple.kec.pthread          1
Model: MacBookPro6,2, BootROM MBP61.0057.B0C, 2 processors, Intel Core i5, 2.53 GHz, 4 GB, SMC 1.58f16
Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 256 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533654465238432D47372020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533654465238432D47372020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.98.100.22)
Bluetooth: Version 4.2.4f1 13674, 3 services, 23 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: ST9500325ASG, 500.11 GB
Serial ATA Device: MATSHITADVD-R   UJ-898
USB Device: Hub
USB Device: BRCM2070 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Apple Internal Keyboard / Trackpad
USB Device: Internal Memory Card Reader
USB Device: Hub
USB Device: Built-in iSight
USB Device: IR Receiver
Thunderbolt Bus:

Kara436,
some 15-inch Mid 2010 MacBook Pros are known to have a defect in their NVIDIA GPUs. Given the symptoms which you’d described, yours might have that defect also. Apple had a gratis servicing program for three years from the MacBook Pro’s date of purchase; they still offer the servicing, but it is no longer guaranteed to be gratis. I’d recommend that you make an appointment at your nearest Apple store or Apple-authorized service center, to have them run their Video System Test on your MacBook Pro, which will confirm whether or not its NVIDIA GPU has the defect.

Why is it that my iMovie app keeps shutting off randomly! I'm trying to export my movie and it shuts down each time it's a 1/4 of the way through downloading! Ah! Please help.

Why is it that my iMovie app keeps shutting off randomly! I'm trying to export my movie and it shuts down each time it's a 1/4 of the way through downloading! Ah! Please help.

I also have Jolly's problem. I found the iMovie 9.0.9 folder and tried to launch the older version of iMove. It would not launch. I removed all of the iMovie preferences from the Preferences folder, removed iMove 10 from the applications folder, and restarted my Mac. iMove 9.0.9 still won't launch and I can't access my videos created with the older version of iMovie. Is there a way to uninstall iMovie 10 and reinstall iMovie 9.0.9?
I am running Yosemitie on a iMac.
Paul

My iphone 5 keeps shutting off every 2 minutes even though its fully charged what to do????

my iphone 5 keeps shutting off every 2 minutes even though its fully charged ... what to do???

http://support.apple.com/kb/HT1414?viewlocale=en_US&locale=en_US

My iPhone 5 keeps turning off saying the battery is dead but then when it's connected to the charger it's says the battery could be anywhere between 40-60%. Any solutions

My iPhone 5 keeps turning off saying the battery is dead but then when it's connected to the charger it's says the battery could be anywhere between 40-60%. Any solutions

This is often due to fautly battery. Make Genius reservation and take iPhone to Apple Store for free quick battery diagnostic testing.

Wife's iPhone keeps shutting off randomly and does it even when on calls, restarts and has a dark line in center of the screen then the apple logo. At times it does it several times or won't power up, and the iPhone4 is only five months old. What do we do

Have an iPhone 4 that is now shutting off randomly including during calls. The iPhone is roughly about five months old. When the iPhone shuts down and tries to restart it usually take two or three times before it stays on, but when it does it sometimes has a dark line down the center and shuts off. Not very happy about the iPhone doing this. The store we had purchased the iPhone 4 from suggested that we contact Apple to see about a replacement, or send it away for service. As you can tell we are not happy at this point since the iPhone is crucial part of our day for work and family. What should we do at this point?

Thanks for the suggestions!
Except I tried all those before I even made this topic lol, but thanks!
I Already popped out the Sim Card & let my phone sit without it for a few minutes then put it back in. Sometimes it will work again & it will say it recognizes the SIM Card but more times then not it still says it cant recognize it! So I have to take it out & reinsert it multiple times.
& I have done a complete restore 2 times & a back up restore 3 times. Nothing seems to be working.
I am planning on going to the Apple Store this week, wish me luck!
But keep the suggestions coming if you have any, I'd appreciate it!

Why does my iphone 4 keep shutting off

My iphone 4 keeps shutting itself off, its at like 56% battery ill turn it on, and it will stay on for about 5 seconds then shut itself off again, how can i fix this or do i have to take it to an apple store to get fixed?

Later most likely

My iphone 4 keeps shutting off and wont start up for at least 24 hours

My iPhone keep's shutting off when the battery is at 85% it won't even start up again i put it on the charger it take's at least 24 hours then it will work but it's freezes. Anyone have any Idea's it would be greatly appreciated. Thanks,

Hello there, Doubtmii.
The following iPhone Troubleshooting Assistant should help you on the right track for resolving your issue:
Apple - Support - iPhone - iPhone Troubleshooting Assistant
http://www.apple.com/support/iphone/assistant/phone/
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro D.

MacBook Air (Late 2010) keeps shutting off randomly, sometimes when computer is tilted or moved

Hi all,
I have a Late 2010 13-inch MacBook Air. I've had it pretty much since they started selling them at the Apple Store, or maybe a few months afterward. For probably a few years I had only used it once in a while, since I had a Windows laptop for work. Since this past December I have exclusively been using my MacBook Air, I have since given away the Windows computer.
Recently it has started shutting off randomly while I'm using it. I've tried resetting the PVRAM and the thing that manages how the power/screen works (I forget what its called), and that hasn't worked. I'll try to turn it back on again after it has shut off, and it sometimes doesn't come back on unless I tilt it a little bit. Does anyone know what could be causing this issue? Is it something I can probably fix, or should I take it to the Apple Store? Thanks for any and all feedback.

Since the PRAM and SMC reset didn't work and your screen only seems to work when the screen is tilted at a specific angle, it might be a hardware problem. If you're near an Apple Store, you should make an appointment at the Genius Bar to have someone look at it: http://concierge.apple.com/reservation/us/en/techsupport/

Why does my iPhone 4s keep shutting off when it gets to 15% battery life?

It just shuts off, and once I put it on the charger, it will turn on with 18% or more. This has been happening for the past few days now, and I don't know what's going on o_O

Have you been doing the recommended running the iPhone until it powers down then recharging to 100% once a month or so, in order to keep the charge readout calibrated?

Iphone 4 turns off randomly with battery remaining

Hi ,
My iphone 4 has been switching off randomly even when battery is 100% and wont switch back on unless connected to a power source.
This behavior is more prominent when i connect to 3G or when i turn on or turn off the flight mode.
I have already changed my battery and also restore my phone to factory settings with latest ios update but still its not working as before.
I do not remember dropping my phone or it getting in water.

Hello altzero,
Welcome to Apple Support Communities.
Take a look at the article linked below which provides troubleshooting suggestions that’ll resolve most issues like the one that you’ve described, where your iPhone 4 is restarting or powering off intermittently.
If your iOS device restarts, displays the Apple logo, or powers off while you're using it - Apple Support
So long,
-Jason

2009 Macbook shutting off randomly with over 50% of battery left

Recently my 2009 Macbook has started shutting off, with no warning and 50% or more of the battery remaining. The battery life has also dropped considerably. Is this a common problem? And why is it happening?

How many charge cycles does your battery have? If you are upwards of 300, then you could be getting close to the life of the battery, and it will demonstrate this behavior even though the reading shows better health. Check your System Profiler:
 > About This Mac > More Info >…
There is also an open source utility called Coconut Battery that you could download here:
http://www.coconut-flavour.com/
When the battery begins to die it discharges sooner than it is able to activate the script "10% remaining" notice.

Iphone 5 ios7 shuts off randomly while charging, surfing the net, on lockscreen

I had the same problem with my iphone 5 after updating to 7.0.4. For one month the phone was doing well than the symptoms started. First the phone had 60% off battery i plug it in the wall charger and after 5 minutes it turns off. I did a hard reset and the phone boot properly. Than i plug it another time and after 10 minutes i went to check and it was down again. My wall charger and usb cable are genuine. I tried with different charger and usb cable but with no results.
That i tried to charge via PC and i had sucsses. Than another day the phone had 93% of battery and using 3G on youtube the phone crashed (turn off). Then again and againg using the 3G. I kept charging the phone via PC those days because with the wall charger it shuts off, in the same time i didn't use 3G and cellular data, only wireless. The phone went fine for 2 days than it started crashing again and i had to do a hard reset every time to get it back on because the screen went black. Also on the diagnosis section it started creating panic.plist and reset counter. I searched on web for fixes and did a restore to 7.1.1 puting the phone on DFU mode. The phone got worse after the update, it started crashing every 5 minutes, with 3G, celluar data, wireless ON or OFF it didn't matter anymore. It started a new symptom with the battery full or half or any time i pushed the sleep/wake button after 1 minute the phone turned off, every single time and i had to do hard reset. Than for one day what i did was letting the iphone with the screen always on and with no nano sim in. I let it drain than i recharged full via PC and put another nano sim card. Since than the phone was fully functional, never crashes or turn off, i started charging it again with my old wall charger and usb cable. I think the problem was with the sim socket, plus old sim was macro and before puting it to the iphone when i first get it, i cutted the macro sim with scissors to make it nano to fit in the phone, and i pushed it hard the slot to feet perfectly.

Hey dMARSELj,
Thanks for using Apple Support Communities.
iOS: Device unexpectedly restarts, displays Apple logo, or powers off
http://support.apple.com/kb/TS5356
Have a nice day,
Mario

Iphone 6 keeps shutting off randomly with battery left

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