hey, i figured out the problem... I was using a USB cable that i had laying around that i "thought" worked because it charged the phone when plugged in, but come to find out once i used the supplied cable that I had plugged into the DC plug, it worked just fine! I researched and saw this problem on another forum:
A couple of things that may caused it to not work properly. Check these:
- Bad USB Cord.
- Bad SD Card.
- Bad USB plug.
- Restart your computer and reboot your phone.
- Defected MT3G.
- Take it to your Tmobile's Store.
figured i'd post that incase anyone else has problems...Make sure you use the supplied USB cable even if it fits and charges.