OpenTX 2.1.9 Improving your Tx
OpenTX Companion and firmware are now available as version 2.1.9.
Download and install Companion and use it to retrieve and transfer the latest OpenTX firmware to your radio.
OpenTX Companion 2.1.9 - Linux RPM Package 32-bit
Notice for Windows XP users
If you experience a problem starting Simulator.exe, then install Microsoft Visual C++ 2008 Redistributable Package (x86)