Sound turns off randomly

I just got my new iphone5. I notice that every once in a while the sound just randomly turns off. The volume is all the way up and I've checked all of the obvious solutions. Any ideas?

I have the same problem with the latest iOS..

Similar Messages

My Macbook Pro (15 Inch) turns off randomly!!

My Macbook Pro (15 Inch) turns off randomly (Usually when it triggers graphic card)
Here I have a problem report. can anyone tell me what is happening????
Interval Since Last Panic Report: 45976 sec
Panics Since Last Report:          15
Anonymous UUID:                    674ECA2E-A451-E88A-AB3B-EFBF7EDC1E9E
Sun May 12 23:22:40 2013
panic(cpu 0 caller 0xffffff7f9c3a8b25): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff80bad36000 0x0a5480a2, D0, P3/4
Backtrace (CPU 0), Frame : Return Address
0xffffff808bbfb7e0 : 0xffffff801bc1d626
0xffffff808bbfb850 : 0xffffff7f9c3a8b25
0xffffff808bbfb8e0 : 0xffffff7f9c4a24b3
0xffffff808bbfb940 : 0xffffff7f9c4a2527
0xffffff808bbfb9b0 : 0xffffff7f9c7b7853
0xffffff808bbfbaf0 : 0xffffff7f9c4c8659
0xffffff808bbfbb20 : 0xffffff7f9c3b28da
0xffffff808bbfbbd0 : 0xffffff7f9c3adfac
0xffffff808bbfbdc0 : 0xffffff7f9c3af9ba
0xffffff808bbfbea0 : 0xffffff7f9c3431c4
0xffffff808bbfbef0 : 0xffffff7f9de4971f
0xffffff808bbfbf40 : 0xffffff7f9de488e7
0xffffff808bbfbf60 : 0xffffff801bc3dcde
0xffffff808bbfbfb0 : 0xffffff801bcb26b7
      Kernel Extensions in backtrace:
         com.apple.NVDAResman(8.0)[A4C53A36-22B6-3075-82B9-9DE612A9C015]@0xffffff7f9c341 000->0xffffff7f9c643fff
            dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f9c2af000
            dependency: com.apple.iokit.IONDRVSupport(2.3.5)[86DDB71C-A73A-3EBE-AC44-0BC9A38B9A44]@0xff ffff7f9c32d000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.5)[803496D0-ADAD-3ADB-B071-8A0A197DA53D]@0 xffffff7f9c2ea000
         com.apple.nvidia.nv50hal(8.0)[9F3D09B5-3158-3D9E-BDA3-E71576AAD3B7]@0xffffff7f9 c651000->0xffffff7f9c973fff
            dependency: com.apple.NVDAResman(8.0.0)[A4C53A36-22B6-3075-82B9-9DE612A9C015]@0xffffff7f9c3 41000
            dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f9c2af000
         com.apple.driver.AGPM(100.12.69)[FBC949AC-F94D-39CD-96A0-C6F121EA7546]@0xffffff 7f9de47000->0xffffff7f9de56fff
            dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f9c2af000
            dependency: com.apple.driver.IOPlatformPluginFamily(5.2.0d16)[3E8EEB7F-E05E-33DD-96B6-9DAFA EB4997B]@0xffffff7f9cdec000
            dependency: com.apple.iokit.IONDRVSupport(2.3.5)[86DDB71C-A73A-3EBE-AC44-0BC9A38B9A44]@0xff ffff7f9c32d000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.5)[803496D0-ADAD-3ADB-B071-8A0A197DA53D]@0 xffffff7f9c2ea000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12C60
Kernel version:
Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64
Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333
Kernel slide:     0x000000001ba00000
Kernel text base: 0xffffff801bc00000
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 1445307590702
last loaded kext at 32394222521: com.apple.driver.AudioAUUC          1.60 (addr 0xffffff7f9d656000, size 32768)
last unloaded kext at 230040050490: com.apple.driver.AppleUSBUHCI          5.2.5 (addr 0xffffff7f9cc27000, size 65536)
loaded kexts:
com.apple.driver.AudioAUUC          1.60
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.driver.AGPM          100.12.69
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AppleHDA          2.3.1f2
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.driver.AppleUpstreamUserClient          3.5.10
com.apple.GeForce          8.0.0
com.apple.iokit.IOBluetoothSerialManager          4.0.9f33
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.0.9f33
com.apple.driver.AppleMikeyDriver          2.3.1f2
com.apple.driver.AppleIntelHDGraphics          8.0.0
com.apple.driver.AppleSMCPDRC          1.0.0
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AppleSMCLMU          2.0.2d0
com.apple.driver.ApplePolicyControl          3.2.11
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleIntelHDGraphicsFB          8.0.0
com.apple.driver.SMCMotionSensor          3.0.2d6
com.apple.driver.AppleLPC          1.6.0
com.apple.filesystems.autofs          3.0
com.apple.driver.AppleMuxControl          3.2.11
com.apple.driver.AppleMCCSControl          1.0.33
com.apple.driver.AppleUSBTCButtons          235.4
com.apple.driver.AppleUSBTCKeyboard          235.4
com.apple.driver.AppleIRController          320.15
com.apple.driver.AppleUSBCardReader          3.1.0
com.apple.iokit.SCSITaskUserClient          3.5.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          34
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.2.2
com.apple.driver.AirPort.Brcm4331          602.15.22
com.apple.driver.AppleUSBHub          5.2.5
com.apple.driver.AppleAHCIPort          2.4.1
com.apple.driver.AppleFWOHCI          4.9.6
com.apple.iokit.AppleBCM5701Ethernet          3.2.5b3
com.apple.driver.AppleUSBEHCI          5.4.0
com.apple.driver.AppleSmartBatteryManager          161.0.0
com.apple.driver.AppleEFINVRAM          1.6.1
com.apple.driver.AppleACPIButtons          1.6
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleHPET          1.7
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.6
com.apple.driver.AppleAPIC          1.6
com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0
com.apple.nke.applicationfirewall          4.0.39
com.apple.security.quarantine          2
com.apple.driver.AppleIntelCPUPowerManagement          196.0.0
com.apple.driver.DspFuncLib          2.3.1f2
com.apple.iokit.IOAudioFamily          1.8.9fc10
com.apple.kext.OSvKernDSPLib          1.6
com.apple.iokit.IOSurface          86.0.3
com.apple.iokit.IOSerialFamily          10.0.6
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.0.9f33
com.apple.iokit.IOBluetoothFamily          4.0.9f33
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.driver.AppleHDAController          2.3.1f2
com.apple.iokit.IOHDAFamily          2.3.1f2
com.apple.nvidia.nv50hal          8.0.0
com.apple.NVDAResman          8.0.0
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.AppleSMC          3.1.4d2
com.apple.driver.IOPlatformPluginFamily          5.2.0d16
com.apple.kext.triggers          1.0
com.apple.driver.AppleGraphicsControl          3.2.11
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.iokit.IONDRVSupport          2.3.5
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.iokit.IOGraphicsFamily          2.3.5
com.apple.driver.AppleUSBHIDMouse          175.8
com.apple.driver.AppleHIDMouse          175.8
com.apple.driver.AppleUSBMultitouch          235.7
com.apple.iokit.IOUSBHIDDriver          5.2.5
com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.1
com.apple.iokit.IOUSBMassStorageClass          3.5.0
com.apple.driver.AppleUSBMergeNub          5.2.5
com.apple.driver.AppleUSBComposite          5.2.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.1
com.apple.iokit.IOBDStorageFamily          1.7
com.apple.iokit.IODVDStorageFamily          1.7.1
com.apple.iokit.IOCDStorageFamily          1.7.1
com.apple.iokit.IOAHCISerialATAPI          2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.1
com.apple.iokit.IO80211Family          500.15
com.apple.iokit.IOAHCIFamily          2.2.1
com.apple.iokit.IOUSBUserClient          5.2.5
com.apple.iokit.IOFireWireFamily          4.5.5
com.apple.iokit.IOEthernetAVBController          1.0.2b1
com.apple.iokit.IONetworkingFamily          3.0
com.apple.iokit.IOUSBFamily          5.4.0
com.apple.driver.AppleEFIRuntime          1.6.1
com.apple.iokit.IOHIDFamily          1.8.0
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          220
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          344
com.apple.iokit.IOStorageFamily          1.8
com.apple.driver.AppleKeyStore          28.21
com.apple.driver.AppleACPIPlatform          1.6
com.apple.iokit.IOPCIFamily          2.7.2
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0
Model: MacBookPro6,2, BootROM MBP61.0057.B0F, 2 processors, Intel Core i7, 2.66 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, 512 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463235363634485A2D3147314631
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463235363634485A2D3147314631
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.98.81.22)
Bluetooth: Version 4.0.9f33 10885, 2 service, 11 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: Hitachi HTS545050B9SA02, 500.11 GB
Serial ATA Device: MATSHITADVD-R   UJ-898
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: USB2.0 Hub, 0x05e3 (Genesys Logic, Inc.), 0x0608, 0xfa140000 / 6
USB Device: Apple Optical USB Mouse, apple_vendor_id, 0x0304, 0xfa143000 / 10
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0236, 0xfa120000 / 5
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfa130000 / 4
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 3
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8218, 0xfa113000 / 8
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: Built-in iSight, apple_vendor_id, 0x8507, 0xfd110000 / 4
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 3

Welcome to Apple Support Communities
You have a Mid 2010 15-inch MacBook Pro and your log is showing a problem with the NVIDIA graphic.
HansanL wrote:
      Kernel Extensions in backtrace:
         com.apple.NVDAResman(8.0)[A4C53A36-22B6-3075-82B9-9DE612A9C015]@0xffffff7f9c341 000->0xffffff7f9c643fff
            dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f9c2af000
            dependency: com.apple.iokit.IONDRVSupport(2.3.5)[86DDB71C-A73A-3EBE-AC44-0BC9A38B9A44]@0xff ffff7f9c32d000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.5)[803496D0-ADAD-3ADB-B071-8A0A197DA53D]@0 xffffff7f9c2ea000
         com.apple.nvidia.nv50hal(8.0)[9F3D09B5-3158-3D9E-BDA3-E71576AAD3B7]@0xffffff7f9 c651000->0xffffff7f9c973fff
            dependency: com.apple.NVDAResman(8.0.0)[A4C53A36-22B6-3075-82B9-9DE612A9C015]@0xffffff7f9c3 41000
            dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f9c2af000
         com.apple.driver.AGPM(100.12.69)[FBC949AC-F94D-39CD-96A0-C6F121EA7546]@0xffffff 7f9de47000->0xffffff7f9de56fff
            dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f9c2af000
            dependency: com.apple.driver.IOPlatformPluginFamily(5.2.0d16)[3E8EEB7F-E05E-33DD-96B6-9DAFA EB4997B]@0xffffff7f9cdec000
            dependency: com.apple.iokit.IONDRVSupport(2.3.5)[86DDB71C-A73A-3EBE-AC44-0BC9A38B9A44]@0xff ffff7f9c32d000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.5)[803496D0-ADAD-3ADB-B071-8A0A197DA53D]@0 xffffff7f9c2ea000
These computers have got a damaged NVIDIA graphic which may cause unexpected restarts, kernel panics, black screens... See > http://support.apple.com/kb/TS4088
Fortunately, Apple is repairing these computers for free, so make a backup of your data and take your MacBook Pro to an Apple Store or reseller

Did the most recent update and now my TB Display turns off randomly on both my air and mini. I running TB Firmware Version: 23.6

did the most recent update and now my TB Display turns off randomly on both my air and mini. I running TB Firmware Version:
23.6

When did you get this firmware version? My TBD is at 22.2 and the TBD bus is at 23.4. I thought I had the latest firmware.

When the sound turns off on my macbook, the miniplug stereo port emits a wildly uncontroled load leading to noise.

When the sound turns off on my macbook and my macbook pro, the miniplug stereo port emits a an enormous 'pop', i.e. wildly uncontroled load leading to noise. Goundline hum follows. I am running OS 10.6.6. I have noted previous threads noting the same problem on OS 10.4.x and 10.5.
How do I stop my mac from trying to ruin my stereo and speakers every time I connect them?

You don't say which year you have, however...
...there are known problems with the mid-2010 models (see http://support.apple.com/kb/TS4088?viewlocale=en_US&locale=en_US) as well as early and late 15" 2011 models (see https://discussions.apple.com/thread/4766577?tstart=0).
Apple has taken ownership of the problems with the 2010 model but, unfortunately, the free logic board replacement for that model has probably long expired for you - three years after date of purchase.
One the 2011 models Apple has admitted no defect. You'll just have to skim the articles to get an overview of the problems that people are having (usually showing up as screen glitches at first and then going downhill from there).
Good luck,
Clinton

Has anyone else experience their iPhone 5 turning off at a high percentage and turns off randomly turning back on with the red battery needing it to be plugged in?

Have had my iPhone 5 for almost a year now, love it, but lately it has been turning off randomly with percentage rates of 50% or above and when I go back to turn it back on it has the dead battery sign on the screen. I am trying to figure out if its hardware issuse or if its the battery itself. Just need suggestions on what to do? Took it in and they want me to restore it but I want to try something else before I wipe it clean.

Meghan_Horan wrote:
Just need suggestions on what to do?
1) Try This...
Close All Open Apps... Sign Out of your Account... Perform a Reset... Try again...
Reset ( No Data will be Lost )
Press and Hold the Sleep/Wake Button and the Home Button at the Same Time...
Wait for the Apple logo to Appear...
Usually takes about 15 - 20 Seconds... ( But can take Longer...)
Release the Buttons...
2) Also consider Deleting any Apps you have Purchased / Downloaded but you now never use...
3) Make sure you have the Latest Version of iTunes (v11) Installed on your computer
iTunes free download from www.itunes.com/download
Then...
Connect to iTunes on the computer you usually Sync with and Restore
http://support.apple.com/kb/HT1414

My nephew put the Hallmark Channel on my computer and I can not get the sound turned off.

My nephew put the Hallmark Channel on my computer and I cannot get the sound turned off.

Is this a separate application? Where did your nephew install it? If you do a force quit (command - option - esc) does it show up so you can force quit it?

Macbook air (11", mid 2011) turns off randomly

My macbook air 11" (mid 2011) turns off randomly. Sometimes, in the middle of something a black screen. After a few seconds it starts up again, on using a key. It restarts in the application I worked on before. Strange!

Do you have put hard drive to sleep when possible checked? Try unchecking it.Have you tried repairing permissions in utilities? You could also do a pram reset. Command/Option/P/R keys at startup for three chimes.

MacBook Pro Turns off Randomly Only when logged in OSX 10.8.2

Hi,
I have a 2010 Macbook pro with Mountain Lion 10.8.2. For a couple of weeks now, when its not plugged in to AC it turns off randomly, not at any specific battery%.
Things I have tried already that were not helpful:
- System profiler battery: 374 cycles, Battery Status: Normal
- SMC reset
- Clean install of Mountain Lion without any Migraion of old System files (wanted to do this anyways before the problem arose)
- Its does not seem to be a heating issue, has happened at low temperatures
What I have noticed is that if I either run the diagnostics at startup or enter to recovery mode, I can run the battery all the way to 0% (lasts a while) and this random swtiching off doesn't occur. It only happens when I am logged in to OSX. This makes me think its not a battery issue either.
Any help would be great.
Thanks!

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode* and log in to the account with the problem. The instructions provided by Apple are as follows:
Shut down your computer, wait 30 seconds, and then hold down the shift key while pressing the power button.
When you see the gray Apple logo, release the shift key.
If you are prompted to log in, type your password, and then hold down the shift key again as you click Log in.
*Note: If FileVault is enabled under OS X 10.7 or later, or if a firmware password is set, or if the boot volume is a software RAID, you can’t boot in safe mode. Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. Test while in safe mode. Same problem? After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

Why does my Satellite C655D-S5300 turn off randomly after about 45 minutes to 1.5 hours

Was wondering why my laptop turns off randomly for no reason. It does this even if no battery is connected and the AC adapter is connected. It starts right up again if I press the power button but only lasts for an hour or so then shuts down again? When it starts I do hear the fan going and the system works just fine until it randomly shuts down. Upon restarting the usual windows error indicated improper shut down happened. Could it be a bios problem or a virus?
Solved!
Go to Solution.

Hi Peter,
Well, I finally gave up and took it into a professional repair place who simply updated the BIOS and that solved the problem. Runs like a champ now. I should have checked that before taking it in...would have been a quick fix and saved
$100. Oh well, thanks for the reply.
Jordan

Apple tv turns off randomly

Hi there
Since about a week my Apple TV turns off randomly. Just turns off and on, but of course you have to wait until turn on again and then pick up the show/movie were you left it. Very very annoying
Any one of you have experienced that problem?
I wonder if I have to re-set everything or change the device
Thanks in advance for your input guys
R

Did you have any change before?
Well, you may try reset and restore (to factory setting + download latest firmware) your ATV. Of course, you need to reconfigure the box after it restarts.

Iphone 5 Sound Turns Off

Hi guys, my iphone 5 sound turns off by itself after about 8 hours. Anyone knows what could be going on thanks?

I just updated to 7.1 and I am having the same problem. From the home screen, I don't hear text sounds. If I open the imessage app then you hear it, from home screen you don't. Rebooted once... no help.

Mac sound turns off after 30 mins

have to restart my mac every time just to have the sound turn off again in 30 min

i have sound but i hear nothing.
and im not deaf

Backlight turning off randomly

I have a late 2009 27" 2.66 iMac (latest OS and updates). Just the other day the backlight started turning off randomly (can still see screen under a light). I have corners enabled and can put the display to sleep, wake it again and the backlight turns back on, but only for a short time. And I have a second monitor plugged in with no problems on that.
I've read that it may need new hardware which I don't really want to be forking out on. I've tried the other things of reseting the PRAM and SMC with no luck.
I've tried to boot AHT to run a diagnostic but for some reason whatever I do I can't get it to run.
Anyone have any suggestions?

It's probably a connection if it does it a lot when moving it. If it's out of warranty, you could use one of these guides to open it up and check for lose wires or connections.
-Bmer
Mac Owners Support Group - Join us @ MacOSG.com
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Have an iPhone or iPod touch? Enter Mac611.com in Safari on it for 'mobile Mac support.'
Note: I receive no compensation for product endorsements.

IPhone 4 turns off randomly and refused to turn on until 10 mins or so...

My iPhone 4 originally AT&T smart phone, is what I use on T-mobile as of right now. I have had it for just about two years now and I think it's coming to its last few days. It turns off randomly throughout the day and does not turn on right away when I push either other of the button (simultaneously or one at a time), until about 5-10+ minutes or so. It is very frustrating and I really do love apple products but I don't know, something is telling me to switch to android unless a miracle happens.
Thanks in advanced.

Hey Tiffy6996!
I have an article here for you that describes this issue and can help you troubleshoot the issue a little further:
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 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.
Thanks for coming to the Apple Support Communities!
Cheers,
Braden

Iphone 4 turns off randomly and won't turn back on unless it's plugged in

Iphone 4 turns off randomly and won't turn back on unless it's plugged in.
Has anyone had this problem?
If I leave the phone (thus not doing anything to it) for an extended period of time say 2 hrs. It will have turned off and you can't turn it back on unless you plug it in, but it's got heaps of "Battery" left.
Ever so often it will turn off randomly as well, and can't turn it on again.

If your iPhone is powering off, this is not normal.
Try restoring your iPhone with iTunes as a new iPhone or not from your iPhone's backup. If no change after doing so, your iPhone has a hardware problem. The iPhone includes a one year warranty.

Sound turns off randomly

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