Puxing Px-777 Programming Software |link| Download Jun 2026
This usually means your COM port number is wrong. Check "Device Manager" on your PC to see which port your USB cable is assigned to.
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Once installed, go to Windows Device Manager > Ports (COM & LPT) . Your cable will appear as USB-Serial Controller (COM3) . Set the port number to COM1-COM4 (the PX-777 software rarely detects ports above COM4). This usually means your COM port number is wrong
A Complete Guide to Puxing PX-777 Programming Software: Download and Setup go to Windows Device Manager >
If you encounter issues during the programming software download or installation process, check the following: