40 bit AWID fob clone

Hey All,

Got an AWID fob I’m interested in potentially cloning to a T5577 card, but it’s detected as a 40 bit, which is not one of the formats the proxmark recognizes. Anyone encountered one of these in the wild before?

Below is what I get out of lf search:

[usb] pm3 --> lf search

[=] NOTE: some demods output possible binary
[=] if it finds something that looks like a tag
[=] False Positives ARE possible
[=] 
[=] Checking for known tags...
[=] 
[+] AWID - len: 40 -unknown- (16108) - Wiegand: 9999999999, Raw: 012345678901234567890123

[+] Valid AWID ID found!

[+] Chipset detection: T55xx

Looks like t5577 chip though? Try lf t5 detect command to confirm.

If it is then you should be able to dump it and do a restore to the card

Thanks for the reply Amal, Looks like it is indeed a t5:

[usb] pm3 --> lf t5 detect
[=]  Chip type......... T55x7
[=]  Modulation........ FSK2a
[=]  Bit rate.......... 4 - RF/50
[=]  Inverted.......... Yes
[=]  Offset............ 33
[=]  Seq. terminator... No
[=]  Block0............ 00107060 (auto detect)
[=]  Downlink mode..... default/fixed bit length
[=]  Password set...... No

Looks like that did it!

Did and lf t5 dump and an lf t5 restore and the test card is reading back the same data as the original fob. Now to try it on an actual reader!

Thanks for the nudge in the right direction

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