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OpenTX Companion 2.3.15, published by the OpenTX development team, is a configuration and management utility designed specifically for hobbyists who operate radio-controlled models equipped with OpenTX firmware. Classified under the Radio & Remote Control category, the application serves as a desktop bridge between a Windows computer and compatible transmitters, enabling users to flash new OpenTX firmware images, create full backups of model memory, adjust every parameter of aircraft, helicopter, drone or surface-vehicle setups, and test control logic in an integrated software simulator before committing changes to the physical handset. Typical workflows include migrating a fleet of models to a replacement transmitter by restoring a previously saved backup, editing complex mixes or logical switches on a large monitor instead of the radio’s small LCD, downloading nightly builds to gain early access to new features, and rehearsing maneuvers with the on-screen simulator to verify that throttle curves, flight modes and safety switches behave as intended. Because OpenTX firmware is highly configurable, Companion provides tabbed editors for inputs, mixes, outputs, telemetry screens, global functions and Lua scripts, ensuring that even advanced setups such as 16-channel wings with redundant receivers or F3B gliders with camber presets can be managed without manual entry on the radio. The same executable also handles firmware repository synchronization, automatically offering the correct bootloader, sound files and bitmap themes for the detected transmitter variant. OpenTX Companion 2.3.15 is available for free on get.nero.com, with downloads supplied through trusted Windows package sources such as winget, always delivering the latest build and supporting batch installation of multiple applications.
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