If the radio battery drops below a critical voltage level during a write operation, the write will fail. Always use a fully charged battery.

Windows XP, Windows 7, Windows 8, and Windows 10/11 (Compatibility mode may be required for newer OS versions)

lists version 6.4 and 2.4 for the TC-780M variant.

Note: Downloading radio software from third-party forums or unverified file-sharing sites poses a security risk and may contain malware or corrupt firmware files that can permanently damage (brick) your radio. Required Programming Hardware

This guide provides everything you need to safely acquire, install, and use the programming software for your HYT TC-780. HYT TC-780 Software Requirements

The HYT TC780 programming software is a powerful tool that unlocks the full potential of your two-way radio. With its intuitive interface and feature-rich capabilities, users can customize their radio settings for optimal performance. By following the download link provided and taking necessary safety precautions, you'll be able to program your HYT TC780 radio with ease.

If you need help determining which or privacy codes to program, or if you want to find out which Windows driver version works best with your specific cable, let me know! Share public link

| Issue | Solution | |-------|----------| | Wrong COM port | Cycle through COM1-COM8 in CPS settings | | Driver conflict | Uninstall latest Prolific driver, install v3.2.0.0 | | Radio not powered | The TC780 must be OFF until software sends a wake-up signal | | Windows 11 issue | Enable “Test Mode” or use a virtual machine with Windows 7 |

If your cable uses a Prolific or FTDI chip, ensure you have the correct drivers installed on your PC, or the software will not "see" the COM port. How to Program the HYT TC780 Once you have obtained the software and cable:

Open the Windows (Right-click Start menu -> Device Manager). Expand the Ports (COM & LPT) section. Note the number assigned to your cable (e.g., COM3 ).

Many regional dealers provide the as a value-add for their customers. If you purchased your fleet through a specific vendor, they are usually obligated to provide the download link for the software version compatible with your firmware. 3. Community Archives

Extract the downloaded software archive file to a dedicated folder.

For legal and guaranteed compatible software, you can purchase the download from these authorized retailers: 49er Communications : Offers the software as a digital download for approximately $75.00. Atlantic Radio

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