hey.!!here's the solution for that above problems!
in fact you cannot sync the device with pc.! rather u can transfer files through PC to Mobile.!
All u need is to Mount the device in the mobile as soon as you connect the data cable.!
1.connect the data cable to system.
2.go to notifications in mobile.
3.IN notifications u'll find "USB CONNECTED" select that to copy files from your computer. click on it.
4.click "MOUNT" then.
5.Done. you are connected. with the system as USB flash drive.!