Important Note: You will need to have your memory card installed in your phone to use this process.
1. Turn your phone on.
2. Once at your homescreen plug the USB cable into your phone and then plug the other end into your computer.
3. Wait for the notification icon to show up on your phone's status bar.
4. Open the notifications panel, you can accomplish this by touching the panel and dragging down the status bar with your finger.
5. Tap the USB Connected option that appears.
6. Tap "Mount"
7. Use your phone's navigator to find the USB Drive and open it.
8. Copy files directly to your storage card.
You'll notice that when you're connected in this manner that certain parts of your phone won't work, for example the camera on your device won't work and you won't be able to access files on your storage card until you disconnect your device from your computer.