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#1 2019-09-07 18:29:03

Registered: 2015-09-26
Posts: 34

Making a new tesla key card for model 3

Has anyone ever tried to make a key card for the model 3 yet?

Search of the tesla key card i have on hand

hf search

UID : 04 6d 5d fa dd 55 80
ATQA : 00 48
SAK : 20 [1]
TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k SL3 | JCOP 31/41
MANUFACTURER : NXP Semiconductors Germany
ATS : 05 78 77 91 02 d5 b6
       -  TL : length is 5 bytes
       -  T0 : TA1 is present, TB1 is present, TC1 is present, FSCI is 8 (FSC = 256)
       - TA1 : different divisors are supported, DR: [2, 4, 8], DS: [2, 4, 8]
       - TB1 : SFGI = 1 (SFGT = 8192/fc), FWI = 9 (FWT = 2097152/fc)
       - TC1 : NAD is NOT supported, CID is supported
No chinese magic backdoor command detected
PRNG data error: Wrong length: 0
Prng detection error.

Valid ISO14443A Tag Found - Quiting Search


#2 2019-10-08 15:40:09

Registered: 2019-07-16
Posts: 24

Re: Making a new tesla key card for model 3

Did you try running any commands related to mfdes to see what information you get? I.e  hf mfdes info ? This will help with answering the question since we can look at the specifics of the fob.


#3 2022-07-01 20:49:00

Registered: 2022-06-29
Posts: 2

Re: Making a new tesla key card for model 3

I want to resurrect this thread. I am new to the community and want to learn where to start with making my own Tesla Key.

I have found some great info from another user on github: … 158bddf933


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