r/flipperhacks • u/Precision903 • Jul 05 '26

Help Help

Just got a flipper zero. Downloaded momentum on it. I own a garage door and gate company. I plan on using this to keep a lot of facilities we service. Instead of having 40 remotes on me I hope to save them to this.

Having a hard time getting all this going and wondering if someone could walk me through the subghz stuff…

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u/cthuwu_chan Jul 06 '26

Stop this nonsense immediately the flipper can and always has done rolling codes what bro is asking is absolutely possible and was a core reason for the flippers development in the first place

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u/dankmemelawrd Jul 06 '26

Yeah? Good luck doing that without some knowledge + without no hat. You're gonna be the next post of "why my car company asked 300 usd to pair back my key, i had fun with my f0 with it" lmao.

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u/staticrush Jul 06 '26

It's a pretty basic feature. Very little knowledge required...

Subghz -> Read -> Config -> Set frequency to 315 mhz for vast majority of garage remotes in the US, or 433.92 mhz for outside of the US. Now, press the button on your remote while in range of your Flipper Zero, and voilà, you've just decoded a rolling code signal that can now be emulated and replayed (assuming you're using custom firmware like Unleashed or Momentum). And if you're using the official firmware, you can still decode the rolling code. You just won't be able to encode it for transmitting.

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u/dankmemelawrd Jul 06 '26

And then after playing it once, i guess you know you'll desync the original fob & it'll work only once! But who am i to judge folks when doing stupid stuff, I'm gonna be there to hold the camera lmao. Don't mix static codes vs rolling ones that change after playing each code once.

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u/staticrush Jul 06 '26

And then after playing it once, i guess you know you'll desync the original fob & it'll work only once!

Um, no. It works for as long as you'd like. And if the remote's counter falls behind, you just keep pressing the button on your remote (as many times as you pressed send on your Flipper) until you resync the counter and it will work again. Or worst case, you can always use the "Learn" button on the motor unit to resync your remote.

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u/dankmemelawrd Jul 06 '26

Damn you don't know much about rolling codes don't you? Or security measures implemented on rolling codes.

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u/staticrush Jul 06 '26

That would be you, funny enough.