Answers to some of your questions about transferring files between your computer and Samsung Galaxy S III 4G LTE
What is Media Transfer Protocol (MTP)?
MTP is a feature built into the Samsung Galaxy S® III 4G LTE. It doesn't require extra software.
After you plug your Samsung Galaxy S III 4G LTE into a computer, it behaves and installs as a storage device, and you can access the memory card and phone storage.
How does the memory card work?
The memory card is the main storage for your Samsung Galaxy S III 4G LTE. Your Samsung Galaxy S III 4G LTE also has 16GB internal storage.
Captured images or video automatically save to the memory card.
All Internet and application downloads, Bluetooth® file transfers, and most media types automatically save to the memory card as well.
Your Samsung Galaxy S III 4G LTE supports MicroSD cards up to 64GB.
Virgin Mobile recommends storing data to your memory card so you can easily transfer the card to another device.
Your data is safer if you need to troubleshoot your Samsung Galaxy S III 4G LTE.