FrSky STK Tool for S.Port products Upgrading and S6R/S8R receivers Configuration


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FrSky Compact XSR-SIM USB Dongle supports most simulators which have no hardware encrypted.

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US $18.90

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FrSky Compact XSR-SIM USB Dongle for FrSky Transmitters and Module System

  • S.Port 1 (upper) – Monitor, receive and set the telemetry data for S6R/S8R receivers (with DIP switch to the upper side)
  • S.Port 2 (down) - Upgrade S.Port products (with DIP switch to the down side)

How to upgrade S.Port products

  • Get the Driver and detail instruction Here
  • Video Here

Steps: Put the DIP switch to the down side → connect the USB port of STK to the USB port of PC → run “frsky_update_Sport.exe”, match the COM port number to the one assigned by PC. Click “File” button and select FW version → connect the 3-wire S.Port cable to the S.Port 2 of STK and S.Port of upgraded product → After “device found, please click Download”, then click the “Download” button to start the upgrade → Exit the process by clicking “End” button after “Firmware is updated”. 

  • Learn S6R/ S8R configuration from FrSky website here


  • 1x FrSky Shoulder Transmitter Strap For all Transmitters

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