Echo UAT setup
The hexidecimal identifier is entered on the setup page for the Echo UAT from your phone or iPad. When you get the new N number, go the the FAA site and see if they changed your hexidecimal code as well. They probably will have done so. Go into setup and change both. Save the configuration before exiting. It will be important to change both at the same time since flying with the new version of one but the old version of the other is not legal. Send me a PM and I can walk you though it on the phone if you like.