Samsung Galaxy S III User Manual page 256

3. You will see either Connected as a media device or Connected as a camera.
The files on your phone can now be accessed via your computer.
For most transfers, you'll want to use Connected as a media device.

To change the option, tap it in the Notification Panel to open the USB PC Connection

window, and then tap the desired option.
4. On your computer, navigate to the detected device (such as through the My Computer menu) and
open it.
5. If available, select a drive (Card for SD card, Phone for internal phone storage).
6. Select a folder (for example, Music for songs and albums) and copy files to it from your
computer.
7. When you are done, disconnect your phone from your computer.
 The transferred files are now saved to your phone or SD card.
Connectivity 247