Proxmark3, paradox C704

Support
21

@IGotsMeAPrblm

Upgraded

You should be good to go…

3 Likes
22

Gotcha, so quick history about the T55xx chipsets they were originally built for manufacturers so they didn’t have to continue to make old chips and could just use the T55xx chips, so some have a password on them. I think that’s what is happening here. You have two paths, you could buy a T55xx fob, or bruteforce the password, I would suggest buying a T55xx fob. You don’t need to look at the antenna info, you are getting good reads.

2 Likes
23

I’d try starting with an lf t5 detect

Might as well keep trying to save this one before getting another one

2 Likes
24

This 100% I’ve never interacted with a T55xx chip with a password, this is where my knowledge runs out.

1 Like
25

144ded59-0546-4c6f-9375-7e4702525178_text

You didn’t edit Makefile.Platform when you compiled it seems…

What platform are you running on?

2 Likes
26

How did you install?

Are you using proxspace?

1 Like
27

Fantastic, run these commands one after the other within proxspace, cd’d to the proxmark3 folder:

  1. cp Makefile.platform.sample Makefile.platform
  2. sed -i '0,/PLATFORM=PM3RDV4/{s/PLATFORM=PM3RDV4/#PLATFORM=PM3RDV4/}' Makefile.platform
  3. sed -i '0,/#PLATFORM=PM3GENERIC/{s/#PLATFORM=PM3GENERIC/PLATFORM=PM3GENERIC/}' Makefile.platform
  4. make clean && make -j
  5. ./pm3-flash-all (Make sure the PM3 is plugged in for this one)

(There’s also a different way if you don’t want to fiddle with commands)

My turn to run out of replies :frowning_face:

Whoo!

I’d still start with an lf t5 detect it’ll attempt to tell you whether there is a password set and help double-confirm that it’s a real T5577 and not a false-positive

Plus, there’s not a whole lot you can do to a T5577 without getting it’s configuration first

I’m not super familiar with Paradox specifically, but usually the only info worth much of anything on a tag like this is the FC and CN. Is there something in particular you’re lookinng for?

2 Likes