I purchased an Anytone DM4 radio in March. I initially programmed it for a local repeater, that had DMR enabled, and was able to talk to some hands on it. Then nothing. I tried everything to no avail. Last week, I purchased a hotspot and got it configured for DMR, and the radio lit up with activity. I spent all weekend playing and programming. This will make a great tool to add to the kit for travel and portable operation.