Steve and Others,
Your backup issues are most likely related to an app on your iphone or ipad.
EX: Some apps have large backups and the backups hang. You can disable the backup of the iphone apps from the iphone or ipad and then the itune backup will work, after an itune upgrade should work again.
I had to turn off the Zinio Backups. You do this from the app on you iphone or ipad.
I can confirm that this isnt just an issue with Zinio, i have been doing a lot of testing over the last few days and it seems that any app that you can synch external content with causes the slow backups.
the apps i have tried so far
Comic Zeal
Zinio
Good Reader
Quick PDF+
Pressreader
https://comiczeal.tenderapp.com/discussions/problems/16-comiczeal-causing-slowdo wn-in-ipad-sync
Fixes that work:
Since upgrading to 3.0, I had never been able to finish a backup. After 2+ hours, it would still be only halfway, and so I would hit X and let it sync.
After reading the post from sbessel (thanks!) I got to thinking that maybe some of my apps that cache a lot of data were the problem. So I deleted some, and was able to complete a backup in less than half an hour. That's still long, but I am hopeful that it will be faster from now on.
Here is what I did:
1. On the Phone, deleted applications that I had recently used which cache a lot of data for offline use:
-- NY Times
-- BBC Reader
-- WallStreetJournal
-- ESPN ScoreCenter (cited as a problem in a similar thread)
-- NetNewsWire
-- Huffington Post
2. Renamed the backup folder on the PC
(on Windows XP, it is at:
C:\Documents and Settings\[username]\Application Data\Apple Computer\MobileSync\Backup and the folder has a hexadecimal name.)
3. Sync
This worked. Backup took less than half an hour. I am now going to add the apps back in.
Very happy to have sort of resolved this without having to do a restore.
Thanks to all of you who posted on this, especially sbessel.
Update : There is no need to remove all applications. Use the following method instead –
This typically happens when you sync your iphone to two computers. Or if you are syncing on a computer other than the one on which you originally bought the application.
For example, in my case I sync it with the computer at work as well as with the one at home. I download some apps at work and some at home. I update some contacts at work and some at home and I want my iphone to be able to sync with both computers and I think this is what is causing the problem.
Here is what I do to fix it and it works everytime –
1. Immediately after the sync I launch any of my downloaded apps to see it they close by themselves.
2. If yes, I power off my iphone
3. I close Itunes.
4. Re-open itunes. Go to Store > Deauthorize computer > enter appstore id and password. You will get a pop up message saying this computer has been de-authroized.
4. Go to Store > Authorize computer > Enter appstore ID and password. You will now get a message saying this computer has been Authorized.
5. power on your iphone and sync again.
Doing this fixes the problem.
http://apdevblog.com/slow-itunes-sync-backup/
Some Fixes:
iPhone locks up: I fixed the problem by doing the following:
1. Click on “Settings.”
2. Click on “General.”
3. Click on “Reset.”
4. Click on “Reset All Settings.”