: If the website link is broken, use this verified direct download for Windows.
OpenTX 2.1.9 remains a critical stable release for many RC enthusiasts, particularly those using older hardware. This version is notable as the final stable release in the 2.1 branch and the last to support AVR-based radios like the Turnigy 9X and 9XR . Downloading OpenTX 2.1.9 Companion opentx 2.1.9 download
: The official page also provides installers for: Mac OS X Linux (RPM and DEB packages) : If the website link is broken, use
: Telemetry is no longer "always on." Users must now use the “Discover new sensors” command on the telemetry setup page to detect active sensors. opentx 2.1.9 download
: You may need the Microsoft Visual C++ 2008 Redistributable to run the simulator. Key Features and Changes