Problem with replaying signal

Sub-GHz
#1

Hey Everyone,

I have just received my flipper zero recently, and I’m currently trying the Sub-Ghz features. I tried to get a signal from my parking remote control. I see it appear on the scanner, but when I click on one of the received frames I can’t play it back. The frequency is 433.92 Mhz and the modulation is AM650.
Details of the frames :

  • Nice Flor-S 52 bit 433.92 AM
  • Key:0x1C71451445855
  • Sn:B64405
  • Cnt:4699 Btn01

It is the same thing with ReadRAW, I read the signal. I succeed in replaying this one but nothing happens.
If you have any suggestions, don’t hesitate.
Thanks in advance.

#2

This is intended. You are trying to replay a rolling key signal, which is not supported.

In short, rolling signals work by both the fob and the receiver having an internal counter, and incrementing it each time they send/receive a signal. That counter is used to scramble the signal too, so just replaying it won’t work (as the counter in the receiver has already been advanced and won’t accept any previous signals)

#3

Ok, thx for your answer !

#4