This is exactly what I was going to suggest......this should work for you easily. Don't give up.
Using the toolkit you need to get root, recovery and SU installed....imo It's your best bet. And if you're up to it s off would even be better....but not necessarily needed. I'm also assuming you went to HTC to unlock....any how try what HowardZ suggested....hopefully it works.
Sent from my ADR6425LVW