The problem is solved.All updates have been installed successfully, FCC channels are available, but my Skycontroller now doesn't connect to the drone.
For this I connected the phone to the drone over Wi-Fi without the Skycontroller and changed the FCC channel to EU, the skycontroller immediately connected to the drone (the led stopped flashing), then I connected the Skycontroller to the phone, and after the program connected to the drone through it, I went back to the FCC channel.