Rf scanning klikaan klikuit ics1000

I installed the rf reciever and transmitter and installed it on my Pi3 using the Bruh youtube video (https://www.youtube.com/watch?v=5UUazFbK-Hg)

If i scan with
sudo python3 rfrx.py

If i use an old remote i found the code.
But a new remote didnt show up.
And also the ics1000 codes i dont recieve!
How can i sniff my codes?