Electra intercom

125 kHz RFID
#83

New problem appeared. I tried emulating a key fob for the Electra Smart+ line and the same behaviour appears. Read RAW works fine, EMULATE Raw works fine, but no response from access unit what-so-ever :frowning: Could it be that it is yet a new protocol? @dcaprita

LATER EDIT: Apparently it uses EM215 protocol if that means anything.

I can provide RAW files for the fob if anyone is willing to analyze it.
Unit in question is the unit from Residential Touch Line: https://www.electra.ro/ro/produse/videointerfoane-si-interfoane/gama-touch-line/rezidential/terminale-1/vpm-0bf03-elbe5-1

On their website it states that ELECTRA access systems only work with electra RFID tags. So we could be talking about aditional security once again.

Also, regarding the post of Mr. Caprita, I posted a link to the compiled binaries with patched files and the repository to check the changes below:

Thanks to mr. @dcaprita <3 for all the help in discovering the ELECTRA secret .

Bellow, is a link to the compiled UNLEASHED firmware for everyone that needs it :slight_smile:

INSTALATION:

Step 1: Download the archive
Step 2: Unzip the archive. You should get a folder named baked_firmware.
Step 3: Use Q-Flipper on Windows to flash firmware to device (“Add from file…” option to the right of the current firmware number on the firmware tab)
Step 4: Select .tgz file and flash to FlipperZero.

Also, if anyone is interested about how the files look after the modifications, I will leave a link to my github fork below, for which i already made a pull request, so maybe it will be included in future updates of the UNLEASHED firmware.

The pull request link for this update is:

This patch targets the UNLEASHED firmware for flipper zero! I haven’t made the changes to the official version of the FW as I never use it myself. It can be done in a similar manner if anyone is interested :slight_smile:

Hope this helps everyone, and Happy Holidays! Santa came early this year

3 Likes
#85

Can you try update the X F W on GitHub. I got stuck on some of the files can’t find all the functions. :disappointed:

#86

Any news on this?

I was getting my hopes up with firmware version 0.99.1 that said:
“LF RFID: extended EM4100 support (exotic coding and baud rates), various improvements.”

but emulated Electra tags are still not working for me.

#87

Maybe we could all centralize the discussion at EM4100 RFID issue: Emulation does not work · Issue #1500 · flipperdevices/flipperzero-firmware · GitHub ?

#88

check the latest build. I’ve spend a few hours patching manually before finding out someone did it properly. tested and working. electra cards are detected correctly. flipperzero-firmware/lib/lfrfid/protocols/protocol_electra.c at dev · flipperdevices/flipperzero-firmware · GitHub

#89

Tested the new release and it works also for writing on t5577 fobs.
Anyone managed to write a master fob? I tried with FFFFFFFFFFxxxx but it seems it works only for 2 out of 3 readers tried.

#90

Sorry for barging in without reading most of the thread. As a Romanian I am also surrounded by Electra intercom systems. So far I could only test the one in my apartment building. Here are my results:
From the back entrance, usually, when I press my fob to the reader, the intercom beeps a few times and opens the door. When I press the Flipper to the reader, sometimes, like 2/10 times it WILL open the door, but without the beeps. Other times it will do nothing.
From the front entrance, it wouldn’t work at all, but I suspect the reader on the intercom is defective since it sometimes doesn’t recognize the original fob either.
As fun of a toy as this is, what I hoped for was to replace all my electronic keys, cards and remotes with the Flipper. But if it can’t open intercoms and it also won’t store my Nice FlorS remote commands for the garage and gate… at this point in time, for me, it’s a very expensive IR blaster and snake game.

#91

Mai exista grupul? Invitatia a expirat.
Is the group still active? The invite link is expired.

#92

Can I just say how impressed I am with this community? One day I post about this topic and the next day a firmware update comes out which recognizes the Electra protocol and works perfectly.

#93

Nothing but a coincidence, but yup, looks exciting.

1 Like
#94

So far I was unable to write the master key FF FF FF FF FF FF FF to my t5577 fobs using the latest version of un***** with Electra support …
Other “Electra” random keys write/read just fine to my t5577 chips…

#95

Yes from my tests you cannot write all FF on the fob. but writing FFFFFFFFFFxxxx I could enter with the fob on slave Electra readers. on the main reader it shows me an error.
Maybe someone knows what is the problem.

#96

What values did you use for xxxx ?