Are you trying to , or are you looking to update the firmware to fix a specific bug? TC-780M Programming Software Download
This is usually a COM port mismatch or a loose cable connection. Ensure the radio is turned on and the cable is seated firmly.
Alternatively, you can use the following direct download link:
USB programming cables are the standard for the TC-780 series. : You must install the Go to product viewer dialog for this item.
The reality is that this software is , and finding a legitimate, working link typically involves visiting professional radio platforms. Where to Find the Software
In Windows Device Manager, identify which COM port is assigned to the cable (e.g., COM3). In the HYT software, go to Setup > Communication Port and match it.
