Heres the commands in order:
help -> send -> probe -> send -> connect 3 (you need to click on the butten "NUMPAD" in the corner to wirte the 3) -> send -> help -> send -> unlock block
Copied this from another comment, it was quite old so i had to scroll down for a while, but I had so much trouble with the cage that I find it worth it to help other people with the same problem!