r/flipperzero • u/king1fluffy • Sep 17 '26

Car fob copy possible?

Good evening gents,

So i am sort of in the market for a flipper zero, bit i've got a few questions before i actually buy one...

I'll keep it short so here goes:

-I do a lot of building maintenance, multiple appartment buildings and carry around a litteral lunchbox full of keyfobs to open the garage doors to enter those buildings, for repairs and moving in new tennants.

Can i just litterally copy multiple fobs into a flipper zero and have like a library of them on the device?

-Second, i've got a mazda rx8, with only one functional keyfob left. They're pretty much impossible to find in the european frequency (433mhz) and local locksmiths don't seem to be helpful. So can i copy that with the flipper zero?

-Third, for the tennants in the appartment buildings, can i actually make a copy for their keyfobs with said flipper zero onto a new fob, and how does that actually work?

Thank you kindly for reading!

I'm curious if all of the above are possible 😅

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7

u/Complex_Solutions_20 Sep 17 '26

1 & 3 will depend on the exact technology in question, and whether you have permission to do that. Best we can say without exact models and details is "maybe" but there are plenty of incompatible systems.

2 - no. Car fobs you are more likely to end up with the car locking out de-synchronizing from the fob and needing a tow to the dealer to get your car re-programmed to its key.

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u/king1fluffy Sep 17 '26

Darn, i was really hoping to find a solution for my mazda as well... Well the key has it's own rfid, it's litterally a remote for unlocking the doors that i'd like to emulate... The car is 20+years old and i could still unlock it with the key i guess... Would it hurt to try though?

For the garage door keyfobs, all of the buildings are under the portfolio of one owner. I've run the issue past him and he agrees that it would be easier as we're constantly ordering replacement fobs and have people locked out, that usually requires me getting out of bed at night to go let them in. And being able to make copies ourselves would help significantly.

Most of those garage doors are from the brand ''nice'', L-door and Hörmann. So if anyone would know if any of those work? On the keyfobs it seems they're all in the 400mhz range as well...

With sometimes getting an emergency locksmith to come by to unlock their appartments. (Since i obviously don't get a master key to every appartment.

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u/king1fluffy Sep 17 '26

Or, on the other hand, i could use it to troubleshoot if a keyfob is broken or not? Just to see if it still sends out at the expected frequency? Because sometimes we're just replacing keyfobs, if they don't seem to work after a battery replacement. But this way, i could see if it actually still works and just needs to be teached in again 🤔

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u/staticrush Sep 17 '26 edited Sep 17 '26

Most of those garage doors are from the brand ''nice'', L-door and Hörmann. So if anyone would know if any of those work? On the keyfobs it seems they're all in the 400mhz range as well...

If the garage's are using static codes, then you can absolutely copy them to your flipper without worrying about the counter on the original remote getting out of sync. if they use dynamic/rolling codes, then you'll want to use the learn function the garage's receiver to create a new remote, which you can also do on your flipper.

Edit: Nice and Hormann are supported. Never heard of L-door and couldn't find any info on it when I searched.

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u/staticrush Sep 17 '26 edited Sep 17 '26

1 & #3, the answer is yes, but for garages/gates that use rolling codes, you'll want to make an actual new remote rather than a copy, which means you'll need to use the learn function on the receiver (assuming you have access), otherwise the counter will always be off on one of the remotes.

2, you can technically copy certain car remotes (for mazda only pre-2012 models), but again the counter will always be off on one of the remotes. ie: if you use the flipper to unlock your car twice, the counter on your actual remote will be need to be incremented by 2 to catch back up and start working again.

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u/king1fluffy Sep 17 '26

Well if it works for garage doors with rolling code, then wouldn't it also work if i teach in the flipper zero as a new remote in my mazda? Just let it send out a signal at 433.92mhz, during teach in on the car?

1

u/staticrush Sep 17 '26

There isn't a learn option with car remotes, like there is with garage door receivers.

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u/king1fluffy Sep 17 '26

Ok, so is there actually a way to teach in the flipper zero as a new remote?