I got a same remote+receiver on aliexpress, I have a hard time binding them. The led on the receiver flashes fast when it’s unbind, so I hold the bind button and turn on the remote. Led didn’t turn solid, only turned solid when I let go of the bind button. When led is solid, I remove the binding plug. Throttle works ok(didn’t know I’m not supposed to hit throttle), as soon as I turn off receiver the motor went full throttle. I turned everything off and turn back on, they were unbind and won’t pair automatically.
On the second time, I tried to bind with the same method without touching the throttle during the process, turn everything back on they won’t pair.
The third time after checking the above video, I stopped letting go of the binding button, and it took above 2-4min for them to bind. Then I turned everything off, and turn them back on they just won’t pair automatically.
Turn on “RT APP” on the right side of the tool. Change “Control Type” to Off. In the PPM > Mapping tab, look at the realtime pulselength information. Does it stay centered when you turn off the remote?