A download alone won't get the job done; you need a . The PX-777 uses a standard K-Plug (two-pin) connector, the same style used by Baofeng and Kenwood radios.
: If you use a third-party cable, ensure you have the correct Prolific or FTDI drivers installed for your operating system. Quick Setup Steps PX-777 Programming Software Guide | PDF | Radio - Scribd puxing px-777 programming software download
If you cannot get the official software to run, consider these third-party options: A download alone won't get the job done; you need a
The majority of websites offering PX-777 software are unsanctioned archives. Common sources include: puxing px-777 programming software download
Use (supports PX-777 under “Puxing” → “PX-777” or “Generic” → “Kenwood compatible”). CHIRP runs on Windows, Mac, Linux.