I have done this a couple times, and here is my advice . . .
1. Don't panic. As long as your system boots, it's not bricked. You're not experiencing any kind of hardware failure so you should be able to restore it to factory settings.
2. I've borked my device in two cases with Ermine. In both cases, I've had to restore by first reverting back to Dingo and THEN switching to Ermine. Unfortunately, the process of getting back to Dingo is not an easy, intuitive one. The eDGe doesn't have a "recovery mode," which might be what you are used to with your other devices. In addition, getting back to Dingo is a little bit strange: you have to first flash the update, wait for twenty minutes, and then repeat the process. You just have to have faith that it will work.
OK - so here's how you do it. Essentially, you just follow the instructions on this thread:
https://www.entourageedge.com/suppor...barticleid=263
And when you're all done, install the Ermine update.
Good luck!