ah, the design of it is it automatically resets the code if you get any letter wrong, but I know that a glitch is you have to go outside of the range of the door and back in to get the door to take another code
I was able to complete it now. Yes, if you know the word, it works fine "enter the second letter" and the next... But when you make a mistake, it probably restarts, but no text is displayed. It's not serious but that's why I had problems not knowing the word. I liked it!