Radiolink t8fb binding problem

hi i am using radio link tfb radio and r8ef receiver. Previously, the controller was paired, but now it is disconnected. during flight tests, the receiver’s antenna had come into contact with a place and caused an instantaneous short circuit. however, it had not yet been disconnected after that and was operational. I do the binding process as in the video, but it doesn’t succeed. In addition, the control also sounds continuously when it is turned on. I am a beginner in these matters and I am waiting for your help if you have any information or guesses about my problem.

(1338) How to| Make RadioLink receiver R8EF bind with transmitters - YouTube

by the way, I’ve tried all the receiver entries Dec

right now, when I look at it, when I move the control over the qground control, I see the movement momentarily, and then it disappears

i solved the problem