Then you need to call them back, and apologize.
This is NOT a new radio update.
This won't "improve your signal."
Did you take 2 minutes to go through the APK before reporting all this "new radio" business?
For your information I only notified them that there was an update. The people here are the ones that say theirs a radio update and improvements on 4G, and not me.
Sent from my HTC EVO 3D!!!