Chamberlain Security+1.0 brute force help

Sub-GHz
#1

I have a Chamberlain opener in my garage and I can successfully read and emulate the opener. I want to brute fore the door for fun and to learn more about how it all works.

When I read the opener it shows that it is Security+1.0 42b 315.00 AM.

I have tried multiple options in the UberGuidoZ GitHub as well as the stock brute force stuff on custom firmwares with no luck, any help or nudge in the right direction would be helpful. I’m trying to get the Sub-GHz stuff down before I start playing with the WiFi board.

Let me know if you need anymore info.

Thanks in advance.

#2

Are you in a region where you can transmit on 315Mhz? I’ve seen quite a few peoples attempts thwarted by the wrong frequency. Make sure you aren’t trying to use a file or program on 433Mhz.

#3

From my understanding if I’m running cfw I shouldn’t be region locked but I could easily be wrong.

I’m in North America if that helps.

Also I’m able to scan and save the code and it works every time I send the saved code so I know I can broadcast the correct frequency.

I’m waiting on a rtl-sdr so hopefully I should be able to see more of what’s going on when it arrives.

#4

That depends on the firmware but true for most.

That can be very useful!

It’s possible you just didn’t give the Flipper long enough to run through the whole list of codes. I don’t know how long it takes but some brute force scripts take a long time. You won’t usually need to run the whole list but your code may be farther down in the list.

#5

Security+1.0 42b Should NOT be a static code so it changes each time you use it. Also 42 bit is way too long to brute force, it would take forever.

One thing is for example to brute force a 12 bit Nice FLO that would have only 4095 possible codes/hex values another is a 42 bit lenght … so forget it.

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