Itunes 10 won't sync music to my iPhone 3GS 4.0.2

I'm having the same problem. When attempting to sync, the status screen at the top of iTunes says "Step 1 of 1 - Preparing to Sync" and then goes back to the current track and does not sync.

I'm having a similar problem except it is with my iPod and it says that I can't sync it unless I have an iTunes version of 9.2 or later...

Same problem. Upgraded to iTunes 10. It yanked all of the music from my iphone 3GS/iOS 4 and will not move any music to the iPhone. It says syncing but does nothing. I can't even get it to sync the items I did buy from the store. Now I'm leaving for a weeklong trip with no music on my iPhone. Thanks, Apple.

Same problem. Mine says "Syncing iPhone" (Step 1 of 5) Backing up.

And it just sits there...

Message was edited by: GodKillzYou

I figured this out after wanting to throw my iPhone 4 against the wall and hating Apple.

In the transition from iTunes 9 to iTunes 10, all your music gets unchecked. (Thanks, Apple for messing up my playlists.)

In order to sync anything over, it has to be checked. Go to the top of your Library to "Music". Make sure you are in that directory. Go to to "Edit" (usually at the top of your screen) then "Select All". Right click your mouse then "Check Selection". This will check your entire music library. Then you can sync your iPhone, iPod or what have you.

I still don't know why my iTunes recognized my iPhone as having 5.8 GB of audio on it when it had none. And I also don't know why Apple made this so difficult, did not inform its consumers, and made about two hours of my evening a living ****. Maybe the guy who designed the antenna got transferred to the iTunes division. Yaaay!!!!

Ditto. I called apple support and was told to try to reinstall iTunes10 but I'll wait a bit to see if perhaps an update comes out for iTunes 10 that might fix it - presuming that is the issue.

Mine is moody. Sometimes it syncs 500 songs then crashes, but most often it gets to #3 and itunes goes bye-bye. This is on an iPhone 4. I went back to itunes 9 and it works fine, so it's definitely itunes 10 that is the problem.

I've had this problem with my iPhone 4 since updating to iTunes 10.

I get an error message 13019 when trying to sync. Online support suggests several things at http://support.apple.com/kb/TS2830 but after trying everything here I had no success. The weird thing was, when removing all music from my iPhone, and then putting it back again, it only synced exactly what was there before. The new music I want to sync stays off my phone.

One other thing I noticed is that every time I tried to sync, my phone had a new, and empty, 'On The Go' and 'Genius' playlist created. Don't know if this means anything. I've gone through and deleted around 20 useless playlists.

Have successfully got the music onto a 30GB iPod (circa 2005) running software version 1.3 so must be something to do with the combination of iOS 4.0.2 and iTunes 10.

following my previous post - some more clues:

Today I downloaded the new Netflix app to my iphone, using my iphone. That DID sync back to my computer - but when I tried to re-arrange the apps using iTunes that change did not sync back to my iPhone. I checked in console and found this:

Sep 4 19:30:21 <<mycomputer's name>> com.apple.usbmuxd[50]: MuxSendToClient send failed for 0x4-17bdbc06ef283c6285f2d8521be78d38fe3c5a34@0xfd100000:53591->0x10031bd10-iTun es/com.apple.iTunes:36353: 32 - Broken pipe

From
http://www.unix.com/unix-dummies-questions-answers/9832-broken-pipe.html
"broken pipe" is a real general error just meaning that the transfer cannot be completed for one reason or another.. i'm sure there are many many reasons you might get that message.. you may want to search on this site or on google for different causes/solutions.

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I think I'll revert to 9.2.1 - which I found here:
http://support.apple.com/kb/DL1056

I'll report back how it goes.

I did an iTunes removal as per
http://support.apple.com/kb/HT1224

I then installed the 9.2.1 version.

Some improvement:
My iphone apps now re-arrange based on my changes in iTunes
however -- music still not syncing.

iTunes 10.0 crashes when trying to sync with my iPod Touch. Even removed the music I had checked. Apple's upgrade and testing qa processes suck. Do they even have a testing department or just a bug fix department?

I decided to search around and found that if you go to your iphone tab in itunes, and go to music, pictures, etc. Tabs that you need, they are unchecked, so recheck them and apply/sync. It should work, it did for me. Good luck and if you need any more info just email me. Zezidarkwolf@yahoo.com

SUCCESS!

I'm still in my downgrade state = iTunes 9.2.1 and as reported only a slight improvement.
My next step was to restore my iPhone. That did it!
Restore option: choose the backup file to complete the restore - relatively painless. Now, in 9.2.1, things are working correctly.

My question is if I had iTunes 10 installed and had tried the restore what would happen? I'm not going to be so brave right now to upgrade back to iTunes 10 - too many hours invested already. I'll let things keep working in the 9.2.1 world for now and see how things progress for iTunes 10. I should have known better than to be a guinea pig and upgrade to the new version on the first day ... If it ain't broke - don't fix it!

(PS - I did not see that check-box issue in my world. For me that was not the problem)