DTR410 issues

Yes it seems things can not be easy anymore when it comes to these radios. Urrg! I powered them up and tested and one will transmit and the other will receive with the id number but will then show the “user not available” when I try to key back. I think I am going to try to do a factory reset and then see what happens…? Any direction on how to wipe everything and start fresh - just in case somehow it is a programing fluke since they seem to try to communicate when keyed (or at least act like they do)??

Thanks!