RT3S Cable - Unknown USB Device (Port Reset Failed)

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N1AH
Posts: 4
Joined: Tue Mar 25, 2025 2:36 pm

RT3S Cable - Unknown USB Device (Port Reset Failed)

Post by N1AH » Mon Apr 14, 2025 1:54 pm

Hi All,

I just picked up an RT3S and cant get the darn USB cable to work. Scoured the internets but havent had any luck. I keep getting "Unknown USB Device (Port Reset Failed) when I plug it in. Any suggestions on how to get this to work? Using Win11 right now -

Many thanks!
Adam N1AH

SA0BUX
Posts: 812
Joined: Tue Jul 05, 2022 8:50 am
Location: JO99ah, Stockholm, Sweden
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Re: RT3S Cable - Unknown USB Device (Port Reset Failed)

Post by SA0BUX » Mon Apr 14, 2025 3:43 pm

  • Are you running OpenGD77 or factory firmware ?
  • Have you installed a DFU driver and which version ?
  • Do you have the correct cable ?
    (it should be without any chip)
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