| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | | Wrong COM port or driver | Check Device Manager. Change COM port in Software Settings to match. | | “Model mismatch” | You selected HT649 for a STX400 | Download the correct model software. Entel is strict with model IDs. | | “Invalid Frequency” | Entered 462.0000 on a 400MHz only radio | Check radio band split (e.g., 136-174MHz or 400-470MHz). | | “Codeplug too new” | Radio has newer firmware than software | Update your Entel CPS to the latest version (contact dealer). | | Write fails at 50% | Cable connection jiggled | Hard reboot radio (remove battery). Use a rubber band to secure the cable clip. |
Entel radios are famous for their rugged design and comprehensive button layouts. The software allows the programmer to assign specific functions to the side buttons. entel programming software