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Usb Dongle 820T stay silent
Posted: Tue Feb 10, 2026 11:24 am
by AliBai
--19-- Peace be with us.
Since yesterday, I have not been receiving a signal. The console starts up, the USB 820T dongle loads, but there is no signal. When I stop the device, the software freezes. I deleted the device drivers, reinstalled the software, and reinstalled the driver with Zadig. The SDR console finds the device, but when I start it, the same thing happens.
If I start my Dragonfly with the console, there is no problem. Everything was working perfectly until yesterday.
How can I solve this problem?
Re: Usb Dongle 820T stay silent
Posted: Tue Feb 10, 2026 2:32 pm
by AliBai
AliBai wrote: Tue Feb 10, 2026 11:24 am
--19-- Peace be with us.
Since yesterday, I have not been receiving a signal. The console starts up, the USB 820T dongle loads, but there is no signal. When I stop the device, the software freezes. I deleted the device drivers, reinstalled the software, and reinstalled the driver with Zadig. The SDR console finds the device, but when I start it, the same thing happens.
If I start my Dragonfly with the console, there is no problem. Everything was working perfectly until yesterday.
How can I solve this problem?
I would like to add the following:
I am using the beta version from November 1, 2025. I have checked the hardware; it runs with other software, e.g., SDRsharp or sdrangel.
Re: Usb Dongle 820T stay silent
Posted: Wed Feb 11, 2026 5:05 pm
by AliBai
--19-- Peace be with us.
I have solved the problem.
After testing two more RTL USB devices on the computer without success, I uninstalled the software and cleaned the registry. Then I did a new installation. Still the same problem. My Dragonfly worked, but none of the other dongles did. Purely intuitively, I downloaded the latest graphics driver from AMD for my onboard chip. Lo and behold, everything works as before. Problem solved.
Re: Usb Dongle 820T stay silent
Posted: Wed Feb 11, 2026 10:38 pm
by Max
AliBai wrote: Wed Feb 11, 2026 5:05 pm
Purely intuitively, I downloaded the latest graphics driver from AMD for my onboard chip. Lo and behold, everything works as before. Problem solved.
Thanks for letting us know. Always worth reporting the solution.
Max