You need the specific software tool to load the firmware onto your radio.
Ultimate Guide to OpenTX 2.1.9: Features, Installation, and Downloads opentx 2.1.9 download
Connect your transmitter via USB (in bootloader mode) and click Write Firmware to Radio ⚠️ Important Considerations SD Card Contents: You need the specific software tool to load
💡 before you flash. Upgrading firmware is a "one-way street" for your model settings, so keep a clean copy of your EPROM safe on your hard drive before you hit that "Write" button. opentx 2.1.9 download
pfeerick commented. pfeerick. on Dec 20, 2023. Contributor. Looks like the link is wrong on the website. The proper link is https: OpenTX 2.1 released! - Page 6 - openrcforums