Sync problems with my iphone

hey,

have weird problem itunes , iphone 3gs..

have iphone 3gs old bootrom, running ios5.0.1... , reason few days ago didn't want sync songs iphone. tried restoring, un-checking sync music, restarting, re-installing.. doesn't sync music. else syncs, apps everything... music! im running itunes 10.5.0.142....... im lost!

there no error messages no problems finishes syncing , no songs have been updated :\ (a thing have noticed skips step 5 , 6 during sync... don't know if that's normal yeah think every detail counts )

there way fix this? (without updating iphone)

more appreciated

 

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