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RFID Read problem #3821

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domthomas-dev opened this issue Aug 3, 2024 · 5 comments
Open

RFID Read problem #3821

domthomas-dev opened this issue Aug 3, 2024 · 5 comments
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Feature Request New feature or user-story you wanna add to flipper RFID 125kHz 125, 134 kHz RFID

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@domthomas-dev
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Description of the feature you're suggesting.

Hello, I was unable to read to simulate this RFID key. I attach here the RAW files which were read without problems. Can we do something to make this work?

Anything else?

RfidRecord.zip
IMG_4355

@skotopes
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RAW data does looks meaningful.
Do you have any other info about this system? Product? Vendor?

@skotopes skotopes added RFID 125kHz 125, 134 kHz RFID New Feature Contains an IMPLEMENTATION of a new feature labels Aug 12, 2024
@skotopes skotopes self-assigned this Aug 12, 2024
@hedger hedger added Feature Request New feature or user-story you wanna add to flipper and removed New Feature Contains an IMPLEMENTATION of a new feature labels Aug 12, 2024
@domthomas-dev
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Here the picture of the reader mutancode clemsa if that can help you
image

image

@domthomas-dev
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Do you need something else ?

@zinongli
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zinongli commented Sep 5, 2024

The reader is probably this one: https://dopromatic.com/ck-40/
The website for reader datasheets: https://clemsa.es/descargas-dispositivos-de-control/
This reader's datasheet: https://clemsa.es/wp-content/uploads/2024/03/CK-40-FICHA-TECNICA.pdf
It says it uses TK 40 tags, which probably means TK4100, quite like EM4100.
TK4100 datasheet: https://www.egrfid.com/wp-content/uploads/2014/03/TK4100.pdf
This tag should've been readable by the EM4100 protocol. But it seriously violated the parity bits, row and column. Here's the most robust decoding I got from the raw files.

preamble
111111111
data
011010101010010101010101101001101010101010011001100110101001101010101010101010101010101

The parity bits are all violated. Unsure what to make of it. The data looks extramely manchester modulated. It decodes to:

0111110000001101111110101011101111111111111

@domthomas-dev do you have T5577s? If you do, you can try using my app T5577 raw writer and test this dump I made.
3821.t5577.zip
Once written it should be able to emulate your tag.

@domthomas-dev
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Is it possible to right an other card with it ?

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Labels
Feature Request New feature or user-story you wanna add to flipper RFID 125kHz 125, 134 kHz RFID
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