How to remove OpenTX bootloader and flash EdgeTX

[AlexGreen556699]

I don't remember how I installed OpenTX on the Radiomaster TX12 transmitter by mistake, and now I can't kick out this bootloader in any way. The EdgeTX MPM transmitter, I've already tried it anyway, I can't remove OpenTX, and edgeTX companions is not being flashed.

[AlexGreen556699]

It would be more correct to say that the EdgeTX companion is being flashed by the transmitter, the firmware is running on the switched-off transmitter and the inserted wire, but nothing changes, the loader remains OpenTX, help, what should I do?

[pfeerick]

It sounds like you are trying to use EdgeTX Companion to update the bootloader and firmware of your TX12. To do this, plug your radio into the USB with the radio turned off. If when you try to do the update, it basically finishes immediately - it has not updated, and when you click the option to see more details, you'll see an error message saying as much. Possibly you need DFU driver?

You could use the handset to update the bootloader from the running firmware (you basically go into the sd card browser, pick the firmware file and select update bootloader or use EdgeTX buddy instead (with a chrome based web browser) to flash both bootloader and firmware via DFU.

See https://manual.edgetx.org/installing-and-updating-edgetx for more information.