| Error Message | Likely Cause | Solution | |---------------|--------------|----------| | “Radio not recognized” | Driver issue or cable | Reinstall Motorola USB drivers | | “Codeplug too new” | Radio firmware newer than CPS | Use newer CPS or downgrade radio | | “License invalid” | Dongle missing or expired | Reinsert HASP key or check license server | | “Write failed at 50%” | Serial port interference | Lower baud rate, close other apps |