To complete the copy of your remote control
1) Start copying until the "Operation Check" screen
2) Press the menu key at the top right to enter manual recording as shown in the image below
3) Move the upper slider to 8 seconds
4) Press the PGM button once for 2 seconds , the D4 LED will flash quickly
5) Press the button in the app "Transmit open signal" , the signal will be learned when the LED goes out