If you updated the jbox to 3.21 you put the wrong firmware on it and bricked it. I did the same thing with the CD that came with the scanner case. Installed and updated firmware to 3.21 and bricked. Spent 2 hours on the phone with tech support and the wanted to have it sent in for diagnosis. Ended up with an entirely new jbox. Updated firmware with the software you download from the website and it works great.