How do i sort error 21 on my iphone

my iphone 4 wont restore it keeps saying error 21 i dont know how to sort it can anybody help please?

This Apple doc should help ya out -> iTunes: Specific update-and-restore error messages and advanced troubleshooting
Error 20, 21, 23, 26, 28, 29, 34, 36, 37, 40
These errors typically occur when security software interferes with the restore and update process. Follow Troubleshooting security software issues to resolve this issue. In rare cases, these errors may be a hardware issue. If the errors persist on another computer, the device may need service.
If you don't want to go through the security software issues article, you can just uninstall the security software on your computer, test again, and reinstall it again afterwards.

Similar Messages

How to fix connection error on facebook via iphone 4s

How to fix connection error on facebook via iphone 4s?

I had the same problem for days. I reset the phone bu holding down the home button and the on off switch together. Don't swipe to turn off. Just hold down the two buttons until phone switched off then wait a few seconds and switch it back on. I can't also use Facebook on safari which I was also having problems with. Hope it helps

How do i resolve error 3014 on my iphone in laymand terms?

How do i resolve error 3014 on my iphone in laymand terms?

Error 1004, 1013, 1638, 3014, 3194: These errors may be the result of the connection to gs.apple.com being redirected or blocked. Follow these steps to resolve these errors:
Install the latest version of iTunes.
Check security software. Ensure that communication to gs.apple.com is allowed. Follow this article for assistance with security software. iTunes for Windows: Troubleshooting security software issues.
Check the hosts file. The restore will fail if there is an active entry to redirect gs.apple.com. FollowiTunes: Advanced iTunes Store troubleshooting to edit the hosts file or revert to a default hosts file. See section "Blocked by configuration: (Mac OS X/Windows) > Rebuild network information".
Try to restore from another known-good computer and network.
If the errors persist on another computer, the device may need service.

How do I sort tv shows on my iphone

How do I sort the ripped tv shows on my iphone? At the moment they're just screenshots with numbers on, and when I click on them each video has the same listed amount of videos inside? On my itunes they look normal.

Hello Sonti84,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
How to delete content you've downloaded from the iTunes Store, App Store, iBooks Store, or Mac App Store
http://support.apple.com/kb/HT5772
TV shows
Open the section below for the device you are using.
iPhone or iPod touch
Before you delete, find out if you'll be able to download the TV show you deleted again (it depends on where you live). To delete a TV show:
Tap the Videos app.
Tap a TV show.
Swipe left to right over the episode you want to delete.
Tap Delete.
Best of luck,
Mario

How can i fix error 1009 on my iphone?

I leave in Iran an its about 2days that I can not download app caz of error 1009! How can i fix it?

You get this error when trying to buy/download items from an itunes store that is not in the same country as your device is currently in.

How do you fix Error -1 when restoring iPhone 4?

I got a message saying my iPhone could not make or recieved calls and needed to be restored but when I
try restoring, it randomly stops and gives the Unknown Error -1. What can I do to fix this?

Error -1
Attempt to restore your iOS device two more times. If the issue is still unresolved, the device may need service.
The "device may need service" means a hardware problem. In that case make an appointment at the Genius Bar of an Apple store.
Apple Retail Store - Genius Bar
Also see:
-1 error
-1 error too

How to fix iTunes error 3014 when upgrading iPhone firmware

Please helpme with this error. I purchased my iPod touch months ago and configured it perfectly. I decided to update it with my latest purchases from my iPhone 4G. I synced my iPhone successfully. When I went to sync my iPod Touch it just shows a picture of the USB cable pointing to iTunes. When I try to restore I get the message above. PLEASE PLEASE PLEASE HELP ME!!!

Unable to contact the iOS software update server gs.apple.com
Error 1004, 1013, 1638, 3014, 3194: These errors may be the result of the connection to gs.apple.com being redirected or blocked. Follow these steps to resolve these errors:
Install the latest version of iTunes.
Check security software. Ensure that communication to gs.apple.com is allowed. Follow this article for assistance with security software. iTunes for Windows: Troubleshooting security software issues.
Check the hosts file. The restore will fail if there is an active entry to redirect gs.apple.com. Follow iTunes: Advanced iTunes Store troubleshooting to edit the hosts file or revert to a default hosts file. See section "Blocked by configuration: (Mac OS X/Windows) > Rebuild network information".
Try to restore from another known-good computer and network.
If the errors persist on another computer, the device may need service.
The "device may need service" means a hardware problem. In that case make an appointment at the Genius Bar of an Apple store.
Apple Retail Store - Genius Bar
3014

HT201210 How do I resolve error 6?

How do I resolve error 6 on my IPhone 4?

Try the information in this support article:
http://support.apple.com/kb/TS3694
Regards.

TS3694 how do i fix error code 1015

how do i fix error code 1015 my iphone 3g will not start up it come up with connect to itunes sign and when i try to restore it it comes up with error code 1015

Presumably you read the article from which you posted. The regular guess is that your phone is jailbroken. If so it is not supported here.

The iPhone cannot be synced. An unknown error occurred (1723). iPhone 4S & Yosemite

Since upgrading my iPhone 4S to 8.1 I have remained happy. Apple wants to shove the iCloud Drive stuff down my throat but I'm not ready yet. Just upgraded iMac to Yosemite. Now iPhone won't sync when plugged in. When it's transferring photos, it stalls out and gives the error message "The iPhone "mine" cannot by synced. An unknown error occurred (1723)." Also, I now have no more ability to sync my numbers documents with my iMac. I chose NO for iCloud Drive on the iMac and was happy for an option. But as it turns out the option was no option. Apple is really saying "Switch to iCloud Drive or we won't let any of your **** work anymore for syncing." If I leave it all the old way on all devices it should continue to work the old way. I stayed synced with my Wife's iPhone 4 and can't update my iMac and 4S and leave her phone in the cold because we share all our contacts and everything. If this is all affected too with this iCloud Drive stuff, the I'm just screwed all the way around until buying 2 new phones.
Hope someone has a solution for the syncing problems I'm facing right now.

This fixed my 1723 error.
http://www.hightechdad.com/2014/09/30/how-to-fix-itunes-error-1723-when-syncing- iphone-or-ipad/

How do I replace the battery in an iPhone 3 and how much does it cost?

I have a 2yr old iphone 3 that needs a new battery - how do I sort this out best?

iPhones are not user servicable.
Apple does not sale parts.
Apple will replace the battery for $79US, but frankly, replacing that ancient device would make more financial sense.

How do i sort out error r6034 on my windows vista when i try to start itunes, the message box is from microsoft visual c++runtime library, it says an application has made an attempt to load the C runtime library incorrectly,

how do i sort out error r6034 on my windows vista when i try to start itunes ???
the message box is from microsoft visual c++runtime library, it says an application has made an attempt to load the C runtime library incorrectly, P;ease contact the application's support team for more information.

Hey deepakmenonfrompune,
Thanks for the question. I understand that you are experiencing issues with iTunes for Windows. The following article outlines the error message you are receiving and a potential resolution:
iTunes 11.1.4 for Windows: Unable to install or open
http://support.apple.com/kb/TS5376
Some Windows customers may experience installation issues while trying to install or open iTunes 11.1.4.
Symptoms may include:
"The program can't start because MSVCR80.dll is missing from your computer"
"iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows Error 126)”
"Runtime Error: R6034 - An application has made an attempt to load the C runtime library incorrectly"
"Entry point not found: videoTracks@QTMovie@@QBE?AV?$Vector@V?$RefPtr@VQTTrack@@@***@@$0A@VCrashOnOverf low@@***@@XZ could not be located in the dynamic link library C:\Program Files(x86)\Common Files\Apple\Apple Application Support\WebKit.dll”
Resolution
Follow these steps to resolve the issue:
Check for .dll files
1. Go to C:\Program Files (x86)\iTunes and C:\Program Files\iTunes and look for .dll files.
2. If you find QTMovie.DLL, or any other .dll files, move them to the desktop.
3. Reboot your computer.
Note: Depending on your operating system, you may only have one of the listed paths.
Uninstall and reinstall iTunes
1. Uninstall iTunes and all of its related components.
2. Reboot your computer. If you can't uninstall a piece of Apple software, try using theMicrosoft Program Install and Uninstall Utility.
3. Re-download and reinstall iTunes 11.1.4.
Thanks,
Matt M.

And when i try to Re-install itunes i get a message from itunes ERROR 7 (windows error 1114), now how do i sort this out ???

and when i try to Re-install itunes i get a message from itunes ERROR 7 (windows error 1114), now how do i sort this out ???

Hey deepakmenonfrompune,
Thanks for the question. I understand that you are experiencing issues with iTunes for Windows. The following resource may help to resolve your issue:
iTunes 11.1.4 for Windows: Unable to install or open
http://support.apple.com/kb/TS5376
Some Windows customers may experience installation issues while trying to install or open iTunes 11.1.4.
Symptoms may include:
"The program can't start because MSVCR80.dll is missing from your computer"
"iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows Error 126)”
"Runtime Error: R6034 - An application has made an attempt to load the C runtime library incorrectly"
"Entry point not found: videoTracks@QTMovie@@QBE?AV?$Vector@V?$RefPtr@VQTTrack@@@***@@$0A@VCrashOnOverf low@@***@@XZ could not be located in the dynamic link library C:\Program Files(x86)\Common Files\Apple\Apple Application Support\WebKit.dll”
Resolution
Follow these steps to resolve the issue:
Check for .dll files
1. Go to C:\Program Files (x86)\iTunes and C:\Program Files\iTunes and look for .dll files.
2. If you find QTMovie.DLL, or any other .dll files, move them to the desktop.
3. Reboot your computer.
Note: Depending on your operating system, you may only have one of the listed paths.
Uninstall and reinstall iTunes
1. Uninstall iTunes and all of its related components.
2. Reboot your computer. If you can't uninstall a piece of Apple software, try using theMicrosoft Program Install and Uninstall Utility.
3. Re-download and reinstall iTunes 11.1.4.
Thanks,
Matt M.

How to fix this error "The error occurred while processing a command of type 'setState' in plug-in 'servermgr_netboot'."

I received this alert while configurating the OS X Server. But i don't know how to fix the error.
Thank's
lzraeder

Hope this helps.
I have been messing around with Mt Lion Server last day or so. Different than Lion Server, more refined, more sreamlined.
I got this same error message when trying to enable and setup NetRestore / NetInstall.
Looks like when one is using Wi-Fi as the network interface, you get this error. I suspected this.
Not sure if this is a bug or Apple wants people to use Ethernet only, if so why give a choice, probably a bug.
I have succefully used NetRestotre Lion server on a 2011 Mac Mini, worked perfectly. Then I remembered, I was using wired Ethernet, as I suspect most servers would use a wired network connection.
MT Lion Server NetRestore / NetInstall works if you use Ethernet, and turn off Wi-Fi. Ethernet will actually show up as a selectable option under Access > Settings > Enable NetInstall Setttings On.., and you click Edit, and can check enable Ethernet.
Once I did that the error went away. Then you get another message, if you do not have a NetRestore (in my case) image in the proper path, which you can set. I always like to do this away from the the boot volume, saves space, etc.
You have to manually copy the .nbi folder you created with System Image Util. It seems Apple could have gone the extra step and included that in the Server GUI.
No more Workgroup Manager, Server Admin, and the other dozen apps it tooks to admin server. Some are complaining. I for one like it very much. Always thought it was somewhat stupid and lazy of Apple to have that functionality across several apps. It was always un Apple like. It should be One App. I like what the Server app is now.
Managing users, groups, shares, services is so much better, and refined, consolidated. Makes so much more sense.
(Local User, Local Network User), you actually know clearly what type of user you are loooking at. WGM was IMHO a nightmare to navigate, it was schizophrenic (left over from NeXT I surmise).
And of course one can go to the CL for all sorts of deep things like dns, changeip, dscl, odutil, etc. It's all there.
john

The message ~There was a problem connecting to the server "your-447023ae6b".appears when I try to play music transferred from my PC to my iMac. Files were transferred from my PC by a Genius. How do I sort it? Next appointment with genius is 5 days away!

The message ~There was a problem connecting to the server “your-447023ae6b”.appears when I try to play music transferred from my PC to my iMac. Files were transferred from my PC by a Genius. How do I sort it? Next appointment with genius is 5 days away!

Hi
Thanks this has helped me solve the problem.
I used the Outlook Anywhere connectivity tester you suggested. Selected Outlook autodiscover.
It told me that it could not resolve things on any of the 4 tests.
I saw that using the last test "Attempting to contact the Autodiscover service using the DNS SRV redirect method", was the only one likely to work in my case.
I had already changed 3 entries in dns to point at my DDNS address but this had not worked, from the errors I could see that it was just the certificate name not matching so I changed the DNS entries for Autodiscover, autoconfig and _autodiscover._tcp
to be webmail.domain.com which is a CNAME to my ddns address for the broadband router, which in turn forwards ports 80 and 443 to the exchange server for owa and activesync access. I got an error message saying that I had an illegal entry in my SRV record
as a CNAME is not allowed, but it saved the change anyway.
I reran the test and it worked.I can now make new outlook clients attach teo exchange.
Thank you, after 8 hours yesterday of trying to reolve this I suddnely got it to work on one laptop but the other still would not and had lost track of what I could have changed so had no idea what actually made it work.
Thank you for your suggestion.

How do i sort error 21 on my iphone

Similar Messages

Maybe you are looking for