I just bought the r9 module for a great price $25CAD .
I tryed upgrading my radio to 2.2.4.
the the module and then the rx.
I tryed binding to the r9mm. it bound but when I unplugged and plugged back in it wasn't bound.
I tryed my other models not r9.
they would not respond nothing moving in the reciever tab in betaflight.
I tryed rebinding them . same as the r9.
bound then when unplugged and plugged back in , nothing.
we tryed downloading lower firmware.
it would bind but nothing worked in the reciever tab in betaflight.
I think my radio is SOL.
has anyone had any experience with this.
is there a fix.
can I wipe the board and re download new firmware?
Thanks Fisher King .

My bet is wrong firmware when you updated to OpenTX 2.2.4.
Try it again and carefully select only the options you are sure.