I was just about to sync my iPhone and back everything up before the 4.3 software update when iTunes kept throwing me this unknown error:
After talking to Apple support the issue was solved. Turns out this error is caused by corrupt / duplicate voice memos on the phone. There is a way to fix this!:
In iTunes, plug your phone in, go to the music tab and select “sync only selected music and play lists”, then deselect “sync voice memos”
Now sync up, everything should be alright.
