I went back and read the thread. I think you have had multiple issues and this is why it was not resolved quickly.
First, you were seeing colors on screen and USB was not detected, this is due to bad power source.
Then the device booted TinyBooter only, no firmware (TinyCLR) and so the jumpers were moved by you or somehow the flash was corrupted.
Then you said you updated all steps and all went fine but then device doesn’t work. But if device didn’t work then how did the update work?!
Here is my suggestion, start from zero and do not make any assumptions. We can step you though it here if you want or call on the phone and point out that Gus from forum said to call.
Step 1: post an picture of how you have the configuration jumper placed
Step 2: use power pack with all steps from now on. 12V is recommended but what do you have?
step 3: do not worry about USB, plug power in and tell us exactly what you see on screen. Or better take a picture.