I own XPR 6580’s, 6380’s, & 7580’s that work just fine at 902/927 MHz. However the XPR7580e will not. It’s a simple hex edit. The trick is once you do the hex edit, you don’t read the radio. Should you need to make a change to a radio, you grab the saved code plug for that radio, make the change to the code plug, program it to the radio, & then save the changes to the saved code plug.