The iPhone "..." could not be synced because the sync session failed to start

iTunes 10.5 beta 3 for Windows - Required for iOS 5 beta 3

I did get

The iPhone "..." could not be synced because the sync session failed to start

You need iTunes 10.5 beta 3 for iOS 5 beta 3

I have the same issue with 10.5b3 and iOS5b3 on MacOS

I can sync, but don't get any Backup!

Messages are:

iTunes could not back up the iPhone"..." because a session could not be started with the iPhone

and

iTunes could not sync information to the iPhone "..." because a connection could not be established to the iPhone

what can I do? No Backup meens no new installation...

kind regards Ivo

I have the iPhone 4, and i upgraded it to iOS 5 beta 1 and iTunes beta 1, I couldn't put on iOS 5 beta 2 for some reason but she 3 came out I downloaded iOS 5 beta 3, and iTunes 10.5 beta 3 and tried to install iOS 5 beta 3 onto my iPhone and now my phone keeps getting the iTunes can it establish a link, well same message but I did a clean restore and tried 3 times and still absolutely nothing works

I've solved the Problem with a restart of my iPhone...

As you find it in the release Notes:

NEW:In some cases, your device may fail to sync contacts, calendars and account settings, or back up to iTunes. If this happens, reboot your device and re-sync.

Ivo

I have both my phone and computer still no luck

So guys, Running iOS 5 Beta 3 on my iPhone 3Gs and found a solution!.

Just keep your iPhone plugged into your mac (or PC) and reboot then hit 'backup'. SIMPLE!

I've tried this on two 3Gs' and an iPhone 4 currently, all three were not correctly syncing or backing up.

Welcome guys!

MacBook Pro - OS X 10.6.8

Core 2 Duo 2.53GHZ

4GB Ram

After experiencing many of the same issues as discussed in this forum, here is how I resolved.

Steps to get from IOS5 beta 1 > IOS5 beta 4: (This may work for beta 2. I did not test)

1. Plug phone into computer
2. Force phone into DFU
3. After clicking "OK", hold down on OPTION and press RESTORE
4. Point to the IOS 5 beta 4 package
5. Finish restore
6. I restored from a previous backup, without any issues.

Good luck!

my iPhone 3gs and iPad 2 giving me the same type of error every time i tried to sync with iTunes 10.5 beta 2,3 and 4 and after I try many option from researching the internet, the DFU mode option was the only one that finally it go through and let me sync fine my devices

Hi!

Yesterday night i tried to backup my iPhone 4 like Indysawmill wrote but failed. Otherwise I see that some data has been copied and when I install some programs I had all of the user data in it.

Sync phonebook throw the iCloud.

Had the same problem and reading through the loines here I think this is the simple solution:

Connect your iPhone / iPad and wait for the message to appear. 'the iphone could not be synced because the sync session failed to start'

Click OK

Your device will be shown in iTunes as usual its just not synced so right click on your device and select 'Backup' this will back up everything as normal.

Next upgrade all software iTunes / xcode

Finally restore your device through iTunes using the option key (mac) and select the correct Firmware ipsw

Thats it your ready to restore your backup you made earlier all done without the need to revert back to earlier versions etc

Ive got a problem. I have IOS 5 beta 1 on my phone but when i try to download Itunes beta 1 it says that my itunes it still running and thati must quit out of it to install the new itunes. However itunes is already quit out of and for some strange reason it doesnt let me install itunes beta 1 and i cant sync my phone with any other itunes beta versions what do i do?

COME ON APPLE!!! You still haven't fixed this yet? We're on beta 4 and I still can't sync! I was just using beta 1 but it just expired and I lost all of my pictures I haven't synced for a month, and leaving that behind I still can't restore from my old backup on ios 5 beta 4. You shouldn't do this to your customers or developers!

Why do you think it's beta software?! Apple specifically says not to install beta software on a phone used every day. Are you seriously complaining that the software is buggy? If you want a reliable, stable version of iOS don't install a beta.

This entire thread shouldn't it even be here, it belongs in the iOS5 Beta developer forum.

I received this error after installing iOS 5 Beta 6.

I resolved the issue unchecking "Sync Photo from.." on my Photo tab. iTunes deleted my synced photos.

I rechecked the box and resynced and then everything worked!

I got the same problem with this error :

The iPad could not be synced because the sync session failed to finish.

Isolved it by unckecking a photo album that was not taken with an iphone or ipad or ipod. It was taken by a 450D.