Proxmark3 community

Research, development and trades concerning the powerful Proxmark3 device.

Remember; sharing is caring. Bring something back to the community.


"Learn the tools of the trade the hard way." +Fravia

You are not logged in.

Announcement

Time changes and with it the technology
Proxmark3 @ discord

Users of this forum, please be aware that information stored on this site is not private.

#1 2018-01-17 09:53:19

Sburb
Contributor
Registered: 2018-01-16
Posts: 6

EM4305 Protection bit

Hello,

I am brand new to this domain, so sorry if it is a silly question.

I have a brand new EM4305 tag. When I do a "lf em 4x05info" command, the answer is that word 0 and 1 are Write Locked.
But I tried to write on word 0 and it is perfectly writable.

The Protection Word is set to 8002 (decimal), which seems to indicate that only word 1 is write locked.
(According to some datasheet I found http://www.advanide.com/wp-content/uplo … 5-4305.pdf)

I tried to look at the client code on Github. From my understanding, words 0 and 1 are always returned Write Locked, ignoring the Protection Word status.

How can I find some more information on that ?
(I suppose that some manufacturers do not follow this standard ?)

Thanks,

Offline

#2 2018-02-08 05:24:57

marshmellow
Contributor
From: US
Registered: 2013-06-10
Posts: 2,302

Re: EM4305 Protection bit

It may just be a bug.  I'll look into it when I get time.

Offline

Board footer

Powered by FluxBB