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#1 2019-02-06 18:22:14

apotere
Contributor
Registered: 2018-10-30
Posts: 11

Can't write on SRIX4K (Special)

Hello boys and girls ,
today we were tring to write data on a SRIX4K

--- hf se
14443-3b ST tag found:
   UID: d0 02 0xxxxxxxxxxxxxxxxxxxxx
   MFG: 02, ST Microelectronics SA France
  Chip: 00, SRIX4K (Special)
Chip Write Protection Bits:
   raw: 11111110
07/08: locked
    09: not locked
    10: not locked
    11: not locked
    12: not locked
    13: not locked
    14: not locked
    15: not locked

Valid ISO14443B Tag Found - Quiting Search


so i began to read the help comands and launched srix4kread to read the card and did some diffs between recharging the key with money.

proxmark3> hf 14b srix4kread
#db# Randomly generated Chip ID (+ 2 byte CRC): 92 e3 47
#db# Now SELECT tag:
#db# Tag UID (64 bits): d0020184 xxxxxxxxxx
#db# Tag memory dump, block 0 to 127
#db# Address=00, Contents=ffffffff, CRC=470f
#db# Address=01, Contents=ffffffff, CRC=470f
#db# Address=02, Contents=ffffffff, CRC=470f
#db# Address=03, Contents=ffffffff, CRC=470f
#db# Address=04, Contents=ffffffff, CRC=470f
#db# Address=05, Contents=fffffffe, CRC=fc13
#db# Address=06, Contents=fffffff0, CRC=bebd
#db# Address=07, Contents=55829360, CRC=73b9
#db# Address=08, Contents=02180320, CRC=aae4
#db# Address=09, Contents=ffffffff, CRC=470f
#db# Address=0a, Contents=ffffffff, CRC=470f
#db# Address=0b, Contents=ffffffff, CRC=470f
#db# Address=0c, Contents=ffffffff, CRC=470f
#db# Address=0d, Contents=ffffffff, CRC=470f
#db# Address=0e, Contents=ffffffff, CRC=470f
#db# Address=0f, Contents=ffffffff, CRC=470f
#db# Address=10, Contents=798460cd, CRC=2f4c
#db# Address=11, Contents=558293ce, CRC=0cb5
#db# Address=12, Contents=0f0000de, CRC=1352
#db# Address=13, Contents=130004e4, CRC=c37b
#db# Address=14, Contents=798460c9, CRC=c33e
#db# Address=15, Contents=558293ca, CRC=e0c7
#db# Address=16, Contents=0f0000da, CRC=ff20
#db# Address=17, Contents=130004e0, CRC=2f09
#db# Address=18, Contents=008946c0, CRC=7c4c
#db# Address=19, Contents=0b444bc1, CRC=b96b
.....

i have found that every time i put the money on the key 10 rows changed , so not knowing witch one to change i tried to launch

proxmark3> hf 14b sriwrite 1 0a 02180320
[SRIX4K] Write block 0A [ 02 18 03 20  ]
received 0 octets

i recived 0 octets and no data changed on the card.

Can someone tell me what is wrong and maybe tell me what does CRC is used for?
Thanks to everyone.

Last edited by apotere (2019-02-07 09:01:14)

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#2 2019-02-07 18:56:36

apotere
Contributor
Registered: 2018-10-30
Posts: 11

Re: Can't write on SRIX4K (Special)

Can someone please help?

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#3 2019-02-13 16:01:58

zakapatul
Contributor
Registered: 2019-01-25
Posts: 2

Re: Can't write on SRIX4K (Special)

Hello,
I am in the same situation with ISO14443B SRT512 chips and the command hf 14b sri512***.
I can read the content, no sector seem locked, the write instruction is successful but the data do not change...

I tried the iceman fork without more success.

I keep digging on this

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