What happens when you sync with the PP Assistant or itools with itunes?

Since the PP assistant has been used without file sharing, it has been shared with itunes since.

Ordinary music and pictures are imported by the PP assistant. I accidentally synchronized the ringtone with itunes. The result is 2 identical ringtone settings. PP and itunes are not visible on the computer, but they do exist on the phone. After analysis and confirmation, finally understand what's going on. The following PC software download station small series to share the experience.

Using PP Assistant or itools to open the file system escape system.

/user/media/itunes_control

Inside there

/user/media/itunes_control/ringtones (Ringtones catalogue)

/user/media/itunes_control/music (Music mp3 directory)

Open these 2 directories to empty.

Then itunes synchronizes once (all items are not ticked, null sync, can be estimated to sync some initialization?)

Then use itunes or PP Assistant can be, regardless of ringtones or music, all in the computer can be seen smoothly and smoothly written.