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rifianno

Contributor

Registered: 2018-12-08

Posts: 5

Dump wont to be written WTF ? "Mifare Auhentication Failed"

Hey guys,

I didnt slept this night because i cant solve this problem.
I always read and write RFID dumps in tags, normal, but there is a dump that i CANT write in a tag and this make me crazy...
The problem dont come from the tag or the version of my softwares because it works with all others dumps

So the writing start, first bits are written in the tag, and  then it stops for no reason, it happens like this :

_____________________________________________________________
NFC reader: RFCARD / RF1258V603 PICC Interface opened
Found MIFARE Classic card:
ISO/IEC 14443A (106 kbps) target:
    ATQA (SENS_RES): 04  00 
       UID (NFCID1): 36  08  f1  c8 
      SAK (SEL_RES): 88 
Guessing size: seems to be a 1024-byte card
Sent bits:     50  00  57  cd 
Sent bits:     40 (7 bits)
Received bits: a (4 bits)
Sent bits:     43 
Received bits: 0a 
Writing 64 blocks |....nfc_initiator_transceive_bytes: Mifare Authentication Failed
____________________________________________________________________

here is the dump : -> https://www.sendspace.com/file/4x4wp9 if a pro can help me

thank you so much

zantzue

Contributor

Registered: 2018-12-13

Posts: 38

Re: Dump wont to be written WTF ? "Mifare Auhentication Failed"

I downloaded and opened the dump...are those access bytes ok? I'm a noob but I expected 4 access bytes instead of 3. For instance, this is block 3 from that dump:

FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF

Shouln't it be something like (replace XX with the right bytes)?:

FF FF FF FF FF FF XX 07 80 69 FF FF FF FF FF FF

Last edited by zantzue (2019-02-13 21:07:45)

piwi

Contributor

Registered: 2013-06-04

Posts: 704

Re: Dump wont to be written WTF ? "Mifare Auhentication Failed"

There are 3 access bytes only and you marked them correctly: in this case the access bytes are FF 07 80, which is the standard (transport) configuration.

rifianno

Contributor

Registered: 2018-12-08

Posts: 5

Re: Dump wont to be written WTF ? "Mifare Auhentication Failed"

thanks for your answers guys,

i cant know where s the problem come from, because this dump come from the same kind of others tag that i use and clone everyday, thats crazy haha

piwi

Contributor

Registered: 2013-06-04

Posts: 704

Re: Dump wont to be written WTF ? "Mifare Auhentication Failed"

If you can't write to a standard card then the card most probably has already some data (and Access Conditions) on it which prevent (over-) writing. It doesn't really matter what you want to write to it...

loupetre

Contributor

Registered: 2019-01-21

Posts: 29

Re: Dump wont to be written WTF ? "Mifare Auhentication Failed"

What is the tag on which you try to write your dump ? Is it a UID rewritable tag ?