IPhone 5 backup failed

I tried several times to backup my iPhone 5 but failed.
Several times it only run for 1 minute and told me 'the last backup could not be completed.'
This morning, it run for almost 1hr and told me the same.
The last backup still keeps in 2013.
What should I do?
I am sure I have enough space to backup!
Please help.

Delete the backup and try again.
Computer iTunes > Preferences... (Windows: Edit > Preferences...) > Devices > mark your back and click Delete button.

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IPhone backup failing

Every fourth or fifth time that I sync my iPhone 3GS to my mac it stops at the 75% mark and refuses to move. If I slide to cancel on the iPhone iTunes still shows up that it is syncing but won't cancel via the X. I need to force shutdown. If I try to sync the iPhone again it won't work, displaying a message that a session could not be started with this iPhone and it will keeping coming up this message every time. Now, if I delete the backup and restart itunes and the iPhone sometimes it will start to back up again for about four times before it stops at that 75% mark.
Any help would be great because it is annoying me greatly.

I have some additional information:
I noticed that there was something wrong with my AddressBook. It is synchronised via MobileMe.
During the restoring processes for some reason one contact got duplicated about 52 times. When I removed these on my mac The content of these contacts (phone number) would disappear, but the name and image would stay.
I have now deleted these records manually, but no successful backup has happened so far.
-- edit ---
I also tried to remove the contacts sync on the iPhone, and then re activating it. But that did not result in a successful backup.
--- /edit ---
Maybe the contacts DB has gotten corrupted?
I do have some kind of "partial" backup created each time. Maybe the content of that backup could be useful to know what is causing BackupAgent to fail?
I could sare a directory listing if it's needed.
Also tried a hard reset of Contacts.
Message was edited by: Bertg

Iphone backup fails - "disk is full" w/ 200g free space

I am getting the " could not complete backup, disk is full " error when trying to backup an iphone 4, but there is plenty ( 200+g) of space free on the hard drive. Any ideas?
( already restarted/cleared previous backups )
Thanks in advance.

happened to me once.
next step depends
do you have a recent good backup already?
anything backed up to the cloud?
which phone?
did you try update direct from phone or using Itunes? (newer Iphones will older will not)
send repy... I will look for it

IPhone backup fail

My phone is a 4S, software version 6.1.3. My phone syncs fine, but it won't make a new backup. I get this error now, every time I try.
The error simply says:
iTunes could not back up the iPhone "iPhone" because an error occurred.
Anybody?

Well for some unexplained reason I've managed to back up at last.
I had tried every combination known to man (and woman) and nothing worked. I had even arranged an appointment at the Apple Genius bar.
I tried one last time and got the usual result. Phone synced but I got the usual final message of 'error occurred'.
So I tried to backup not by clicking the Back Up Now button on the iTunes page but by using this path:
itunes-file-devices-backup.
For some reason this worked! I couldn't believe it, so tried the usual way of clicking the Back Up Now button in iTunes and it worked again.
I really have no idea why this would be, but it worked for me, so it may work for you!

Apps Crashing & iPhone Backup Fail

So, all my apps were crashing on my iPhone except for the ones that were Apple's (Safari, Mail, Settings, etc etc etc). Fine - problem with the OS. I tried restarting my iPhone but the problem persisted. Some files must be corrupted. I've downloaded and deleted apps and haven't done a restore in 3 months. Backup, restore, and things will be okay, right? Not really.
I've done this before, so I wasn't expecting that none of the apps would sync or get backed up. After I restored, only the standard Apple applications appeared on my phone. However, they were arranged on the pages in my most recent organization (mail and app store on the second page, iTunes store stocks and microphone recorder on the third). Obviously when I backed up it took note of this.
And for some reason the apps did not sync with iTunes so now I need to rummage through my purchase history and re-download them(however, a recently purchased app is not listed there at all. never got a receipt in my inbox, either).
I'm a little ****** because I've lost some information that I would have liked to keep, such as the hundreds of words I've saved in the Wordbook App, favorites from iWiki, and log data from iFitness. This is information that I've been accumulating for almost a year. At least losing my saved games makes them replayable.
Now, I understand the information is gone and there is nothing to do about it, but I'm still not okay with this. Has anyone else experienced this problem?? If so, does anyone know what the cause could be? I didn't install/remove/sync anything. Was this caused by a virus? Any recommendations for the future?
TIA for looking at this. Hope I'm not the only one out there.
Message was edited by: abanerjee
Message was edited by: abanerjee

Well for some unexplained reason I've managed to back up at last.
I had tried every combination known to man (and woman) and nothing worked. I had even arranged an appointment at the Apple Genius bar.
I tried one last time and got the usual result. Phone synced but I got the usual final message of 'error occurred'.
So I tried to backup not by clicking the Back Up Now button on the iTunes page but by using this path:
itunes-file-devices-backup.
For some reason this worked! I couldn't believe it, so tried the usual way of clicking the Back Up Now button in iTunes and it worked again.
I really have no idea why this would be, but it worked for me, so it may work for you!

Restoring iPhone, backup fails...

Today I've decided to restore my iPhone to factory defaults. I would like to backup the entire phone, so when I've initiated the resture I also initiated the backup. Backup was successfull and the restore began.
Restoring went without difficulties, then when I've gotten the choice to restore the backup and click to start it, it started to complain about my harddrive not having enough backup space to finish the restore. I thought that was weird, because the backup should already be on my PC, right? But what the heck, it's not the first time iTunes makes me do weird jumps, I'll free up some disk space (I'll admit, there was only a few GB's left). Done that, I try to restore from my backup. But... it was nowhere to be found?!! There was a new backup that iTunes made of the clean install, but all the old backups are gone?!?!
I've searched my user directory (C:\Users\[USER]\AppData\Roaming\Apple Computer\MobileSync) folder in the hope that they're still there and iTunes is just being a big baby, but they weren't there.
Now I find myself sitting here with an iPhone clean install with no settings backed up and lost about 300 photo's/video's. I'm already fearing the worst, but I'm still gonna ask it here: is there any chance getting any data back???
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Hi I read your message and I had the same problem!!I saw nobody answered until now.How did you solve it?please help!

My iPhone won't back up to iCloud it says backup failed after I increased my storage plan. How can I fix that and which email can I sen to if I want to refund the storage I bought on iCloud. It says I have 15 days to return.

Which email should I send to for a refund on iCloud storage within 15 day period. Also the iPhone won't back up to iCloud it keeps saying backup failed even when I log out of iCloud and log back in how can I fix that?

If your back up continually fails, you might try turning off back up on your mobile device (settings > iCloud > storage & backup) and then deleting the backup file from iCloud by swiping the backup file on the mobile device (settings > iCloud > storage & backup > manage…) and then turning back up on again.
Being able to back up to the cloud can be very useful, especially if you don't have access to a computer or have infrequent access to one, however unless you specifically need to use iCloud for back up, you will find backing up to iTunes significantly more convenient and possibly more reliable.

New iphone, restore backup failed with - An error occurred. How do I fix this?

Have tried to follow the transfer instructions but it does not seem to work.
Everytime I choose to restore a backup when I set up / activate the new iphone, it fails after some 10-12 seconds with the message that it could not restore because an error occurred.
It says nothing else about what the error is and I have to start the set up / activation all over.
So how so I solve this?
Other 'answers' says how to transfer, but it does not work for me and the answers I have found does not address this issue.

Search the error code in the support search and you should find something that will walk you through it, but without an error code it's a little hard to know what you're talking about

ICloud Backup fail. iOS 5 running on Verizon iPhone 4

When I turn iCloud Backup on, I keep getting a badge that says:
iCloud Backup Failed>There was a problem enabling iCloud Backup.>Cancel>Try Again.
My iCloud was merged from my old MobileMe account.
My iMac is a G5 PPC running OS X version 10.5.8. I understand that it cannot sync with iCloud, but my iPhone should be able to backup to iCloud, no?

No, you're not the only one. It sounds exactly like what is happening to my phone. Keep looking through related posts as there are some things to try if you haven't done that already.

Restored iPhone to fix a ringer failure, but lost all my texts and pictures in the process. Then, my backup failed to mount. Is there any possibility of recovering them?

So my iPhone 4S stopped ringing, and I was missing all of my calls. The speaker works, it's not on silent, and I'd exhausted most every other option (messing around with accessibility options and various soft resets), to no avail.
So I reset it to factory settings, logged in with my Apple ID, and lo and behold, my backup failed to take. All my apps got restored, but my texts and all of my pictures are missing.
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1. Does the reset procedure involve writing over all old information with 0s?
2. If not, is it possible to recover the data, in full or in part, through some alternative methods?
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Apps have never been included in the backup, so is there actually a backup?
Have you failed to use the device as designed, meaning syncing contacts to a supported application on the computer or a cloud service?
There are some 3rd party programs that claim to be able to extract data (like sms) from a backup, try a google search.
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I'm having problems backing up my iphone 4 to icloud since 13/04/2012. First it says it's going to take about 5 hours, then it says backup failed. Following instructions-connected to wi-fi, plugged into PC

I'm having problems backing up my iphone 4 to icloud since 13/04/2012. First it says it's going to take 6 hours, then it says backup failed. Following instructions-connected to wi-fi, plugged into PC & locked the phone (though never had any problems like this before), but still no difference. Any ideas/similar problems?

unfortunately there are tons of people with this issue but Apple has not given any answers for us to fix this issue yet. I wish they would allocate more people to solving these problems when they roll out new versions of itunes along with new hardware.

I just got iPhone 6 and am trying to restore my iPhone 5 backup but it keeps saying backup failed. Please help.

Im trying to restore my iPhone 5 backup that i made a few minutes ago to my new iPhone 6 - but it keeps saying backup failed. What do i do - need help Please.

Here's what I found in this article Update and restore error messages on iPhone and iPod touch about error 14:
I think you should start with checking the security software settings first.
Error 13 and 14: These errors are typically resolved by performing one or more of the steps listed below:
Perform USB isolation troubleshooting, including trying a different USB port directly on the computer. See the advanced steps below for USB troubleshooting.
Put a USB 2.0 hub between the device and the computer.
Try a different USB 30-pin dock-connector cable.
Eliminate third-party security software conflicts.
There may be third-party software installed that modifies your default packet size in Windows by inserting one or more TcpWindowSize entries into your registry. Your default packet size being set incorrectly can cause this error. Contact the manufacturer of the software that installed the packet-size modification for assistance.
Connect your computer directly to your Internet source, bypassing any routers, hubs, or switches. You may need to restart your computer and modem to get online.
Try to restore from another known-good computer and network.

Time Machine backup fails if you are synching your iPhone?

Time Machine has been running fine on my 10.5.4 system, but today a backup failed
with the message "...error occurred while copying files..." Looking through the
forums, I saw a mention that one should not use iTunes during a backup. In fact,
I was synching my iPhone during the failed backup. Looking at the log using
"sudo grep backupd /var/log/system.log", I saw that it failed to back up
/Users/levoy/Pictures/.DS_Store. My iPhone has lots of photos on it, which are
stored in Pictures/. This comes close to a smoking gun. Lesson: don't synch your
iPhone during a Time Machine backup. Apple should track down and fix this bug.
By the way, my iPhone software is version 2.0.2, and my backup drive is a 1TB WD
drive from Apple. I have disabled sleeping the drive, as suggested elsewhere in
these forums, to avoid hangs.

Time Machine has been running fine on my 10.5.4 system, but today a backup failed
with the message "...error occurred while copying files..." Looking through the
forums, I saw a mention that one should not use iTunes during a backup. In fact,
I was synching my iPhone during the failed backup. Looking at the log using
"sudo grep backupd /var/log/system.log", I saw that it failed to back up
/Users/levoy/Pictures/.DS_Store. My iPhone has lots of photos on it, which are
stored in Pictures/. This comes close to a smoking gun. Lesson: don't synch your
iPhone during a Time Machine backup. Apple should track down and fix this bug.
By the way, my iPhone software is version 2.0.2, and my backup drive is a 1TB WD
drive from Apple. I have disabled sleeping the drive, as suggested elsewhere in
these forums, to avoid hangs.

HT4859 After updating my iPhone 4s to iOS 6.1.2, the iCloud backups fails

After updating my iPhone 4s to iOS 6.1.2, the iCloud backups fails. It appears it is trying to backup the entire 3.1 GB not just new data, thereby exceeding the 5.0Gb limit. I have checked the phone contents on my iMac and there is very little new data so the backup should be successful. I have tried rebooting the phone, which did not help. Phone is not jailbroken. Any suggestions? Thanks....

alisportshots wrote:
I have a similar problem, but after following your suggestion of deleting my iphone backup and then turning backup back on again, I needed to plug my phone into my computer to sync the backup. I re-tried to do an icloud backup and it again told me that "the last backup could not be completed"... since I had deleted the backup, it says the "Last backup: never". Ugh. I reconnected my iPhone 4S to my computer and iTunes so I could sync my phone and do a backup... it's still "waiting for sync to start"...
For your iCloud backup, you may have an app that is preventing the backup from succeeding. To locate which one, go to Settings>iCloud>Storage & Backup>Manage Storage, tap the name of your device under Backups, under Backup Options tap Show All Apps, then turn them all to Off (including camera roll) and try backing up again. If it succeeds, then the camera roll and/or one of your apps is preventing the backup and you'll have to located by process of elimination. Turn the camera roll On and try backing up again. If it succeeds, turn some of your apps to On and try backing up again. If it succeeds again, turn some more apps to On then try again; repeat this process until it fails. Eventually you'll be able to locate the problem app and exclude it from your backup.
If you turned iCloud backup off and try to sync to create a backup on your computer and got a "waiting for sync to start" error, it may be caused by a corrupt backup on your computer. You could try deleting your last backup by opeing iTunes and going to Preferences>Devices, clicking on your last backup and clicking Delete Backup. Then try again.

Error message on iphone 3GS when initiating back-up for the first time "icloud backup failed - how to fix

When initiating back-up of my 3GS to icloud for the first time, I repeatedly receive an error message reading:
"iCloud backup failed
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Thanks.

Same problem here...
I just upgraded my 3GS to iOS5 and signed into iCloud using my Apple ID...
Every time I click "Back Up Now" in the iCloud preferences on the iPhone, I get "There was a problem completing the backup. Please try again later."
On my wife's iPhone 4, I just performed a back up and there were no errors. I tried this also on my wife's iPad 2 and it worked perfectly.
I have tried the following:
1. In iTunes, when my phone is connected, I selected "Back up to iCloud" on the summary tab
2. Reset my phone using the steps in the above post
3. Deleted the iCloud account on my iPhone and logged in again
4. Tried to backup from 3 different wireless networks
None of the steps above fixed the issue which has been going on all day for me...
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My 3gs wont restore after ios 5 update. I have tried firmware restore and restore from backup, neither works. All I get is "iphone restore failed because backup session failed" Any ideas on how to make a successful restore with this ios 5 update?

My 3gs wont restore after ios 5 update. I have tried firmware restore and restore from backup, neither works. All I get is "iphone restore failed because backup session failed" Any ideas on how to make a successful restore with this ios 5 update?

I was having the same problem, I backed up my phone and then updated to iOS 5 and then it kept telling me it could not restore from my backup as it had failed. After reading a bunch of forums and posts and trying everything, I did manage to get it to work. I had tried the Time zone, creating a new computer user account, disabling anti-virus, etc.
It took a combination of things, one of which was disabling the anti-virus completely and copying the contents of the backup folder to my desktop and then deleting everything in the backup folder. Then I rebooted the PC, entirely disabled the anti-virus, copied the one backup I wanted to restore from the desktop to the backup folder and then trying to restore. Low and behold the phone said restoring from backup and I am back in business, so when in doubt, trying combining some of the fixes together.

IPhone 5 backup failed

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