The Icom CS-7100 is a commercial/land mobile radio (portable/base) programming device; downloading the correct software (customer programming software, CPS) and drivers is required to program radios. This guide shows how to find, verify, and install the CS-7100/CPS software safely and what to do if you can’t find an official download.

software (e.g., the version provided on the original CD or USB stick) installed before these updates will run. Purchase Options for New Users

By following this guide, you ensure that your IC-7100 remains a reliable workhorse for years to come. You avoid bricking your radio, losing your memory channels, or introducing malware to your shack PC.

| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | | Driver missing | Reinstall Silicon Labs CP210x driver. Try a different USB port. | | Software crashes on open | Corrupted trial expiration | Uninstall completely using Revo Uninstaller, then reinstall trial. | | Radio says "ERROR" | Clone mode not active | Power cycle radio. Hold V/MHz + PWR until you see "CLONE." | | Windows blocks install | Microsoft Smartscreen | Click "More info" → "Run anyway." The Icom software is signed. | | Cable not working | Cheap charge-only cable | Use a data-grade USB cable (not the one from old phone chargers). |

: You can find the latest version (Revision 1.11 as of early 2026) on the Icom Japan Support Page or Icom America .