You can back up your S4, S3 and S3 Mini phone by using software from Samsung. Firstly, download and install the Samsung Kies software, then connect your phone to your PC via a USB cable.
When your phone is connected, Samsung Kies should start automatically. If it doesn't, double click the icon on your desktop or the one in the start menu.
Your phone will appear under Connected devices. You can now back up or even restore your information. Simply go to the Back up/Restore tab and select what you want to do.
You can also:
- Sync contacts and schedule
- Sync music, photos and video
- Perform a firmware upgrade
Detailed information on how to do this can be found in the
Samsung Kies tutorial.