So I’ve seen a few posts here and on reddit about people “desyncing” their key fob by replaying a rolling code. I do understand how rolling code can prevent replay attacks, since a captured code cannot be reused. However, if the code is captured while out of range of the receiver, then it should work once. What I don’t understand is how you could desync your key while doing so.
Since the flipper cannot generate a valid code but only replay a captured one, and since the key never send twice the same code, the key is always “ahead” of the flipper. So it should never run “behind” the door / car ? What am I missing ?
I don’t want to break my car key by testing this out.