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#1 2020-04-20 19:27:54

The_swon_men
Contributor
Registered: 2020-01-14
Posts: 15

Reading instability SRIX4K

Dear all,

I'm having a problem with a SRIX4K badge with RRG Iceman firmware.
It appears that on this type of badge the connection or the reading is hyper unstable: from time to time, the software shows me that the proxmark3 hasn't detected anything and at other times it has detected it well...
Also during the reading from time to time (about once on tent, the proxmark3 reads all the memory with some errors, and at other times it stops in the middle detecting an error). Here are my captures;

Version informations

[usb] pm3 --> hw version

 [ Proxmark3 RFID instrument ]

 [ CLIENT ]
  client: RRG/Iceman
  compiled with MinGW-w64 9.3.0 OS:Windows (64b) ARCH:x86_64

 [ PROXMARK3 ]

 [ ARM ]
  bootrom: RRG/Iceman/master/release (git)
       os: RRG/Iceman/master/release (git)
  compiled with GCC 8.3.1 20190703 (release) [gcc-8-branch revision 273027]

 [ FPGA ]
  LF image built for 2s30vq100 on 2020-02-22 at 12:51:14
  HF image built for 2s30vq100 on 2020-01-12 at 15:31:16

 [ Hardware ]
  --= uC: AT91SAM7S512 Rev B
  --= Embedded Processor: ARM7TDMI
  --= Nonvolatile Program Memory Size: 512K bytes, Used: 251432 bytes (48%) Free: 272856 bytes (52%)
  --= Second Nonvolatile Program Memory Size: None
  --= Internal SRAM Size: 64K bytes
  --= Architecture Identifier: AT91SAM7Sxx Series
  --= Nonvolatile Program Memory Type: Embedded Flash Memory

Search informations

[usb] pm3 --> hf se
[\] No known/supported 13.56 MHz tags found
[usb] pm3 --> hf se
[\] Searching for ISO14443-B tag... UID: D0 02 01 6B 6C 56 D9 D8
 MFG: 02, ST Microelectronics SA France
Chip: 00, SRIX4K (Special)

[+] Valid ISO14443-B tag found

[-]

Read instructions

[usb] pm3 --> hf 14b sriread 1
#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=ffffffff, CRC=470f
#db# Address=07, Contents=06822653, CRC=ad03
#db# Address=08, Contents=02080114, CRC=9dfa
#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=4000c0c0, CRC=998f
#db# Address=0f, Contents=ffffffff, CRC=470f
#db# Address=10, Contents=614753d5, CRC=977f
#db# Address=11, Contents=068226d6, CRC=9440
#db# Address=12, Contents=020000eb, CRC=53ab
#db# Address=13, Contents=130004e4, CRC=c37b
#db# Address=14, Contents=614753d1, CRC=7b0d
#db# Address=15, Contents=068226d2, CRC=7832
#db# Address=16, Contents=020000e7, CRC=673c
#db# Address=17, Contents=130004e0, CRC=2f09
#db# Address=18, Contents=48c147c0, CRC=4a50
#db# Address=19, Contents=08c147c0, CRC=4e12
#db# Address=1a, Contents=404080c0, CRC=89cf
#db# [!] expected 6 bytes from tag, got less...
#db# [!] CRC Error block!
#db# [!] CRC Error block!

What do you think about it?

Thanks
Best regards
TSM

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#2 2020-04-20 21:02:33

iceman
Administrator
Registered: 2013-04-25
Posts: 6,704
Website

Re: Reading instability SRIX4K

You can try offical repo and see if that solves your problem


If you feel the love,  https://www.patreon.com/iceman1001

modhex(hkhehghthbhudcfcdchkigiehgduiehg)

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