Check light behavior
if your USB and emulator are working properly, the red light should flash when the stick is plugged in. if your stick has a light, it should also light up.
When reading from the stick, the green light should flash.
If the lights do not behave in this manner, please check your cables and/or dip switches.
You might also try reformatting your USB or, using a different USB stick. Smaller sticks seems to work better and typically are faster.