Proxmark3 community

entr0py

Member

Registered: 2015-10-02

Posts: 2

pm3 standalone not reading LF cards

Good morning!

I have a proxmark3 running with the latest firmware from github. Everything went smoothly from the compile and flashing process. The device is a "Proxmark3 RDV" by Elechouse.

Here's the output from 'hw ver':

[== Undefined ==]
proxmark3> hw ver
[[[ Cached information ]]]
          
Prox/RFID mark3 RFID instrument          
bootrom: master/v2.2.0-58-gdfb387b-suspect 2015-10-01 15:10:36
os: master/v2.2.0-58-gdfb387b-suspect 2015-10-01 15:10:36
LF FPGA image built for 2s30vq100 on 2015/03/06 at 07:38:04
HF FPGA image built for 2s30vq100 on 2015/06/22 at 21:47:54
          
uC: AT91SAM7S512 Rev B          
Embedded Processor: ARM7TDMI          
Nonvolatile Program Memory Size: 512K bytes. Used: 168879 bytes (32%). Free: 355409 bytes (68%).          
Second Nonvolatile Program Memory Size: None          
Internal SRAM Size: 64K bytes          
Architecture Identifier: AT91SAM7Sxx Series          
Nonvolatile Program Memory Type: Embedded Flash Memory

I can read the low frequency HID card using the 'lf hid fskdemod' command to prove that things are working:

[== Undefined ==]
proxmark3> lf read
#db# LF Sampling config:                  
#db#   [q] divisor:           95                  
#db#   [b] bps:               8                  
#db#   [d] decimation:        1                  
#db#   [a] averaging:         1                  
#db#   [t] trigger threshold: 0                  
#db# DownloadFPGA(len: 42096)                 
Waiting for a response from the proxmark...          
Don't forget to cancel its operation first by pressing on the button          
#db# Done, saved 40000 out of 40000 seen samples at 8 bits/sample                 
#db# buffer samples: 6e 6f 6f 6f 6f 6f 6f 70 ...                 
proxmark3> data samples 16000
Reading 16000 bytes from device memory
          
Data fetched          
Samples @ 8 bits/smpl, decimation 1:1
proxmark3> lf hid fskdemod
#db# TAG ID: 2004ecf6b1 (31576) - Format Len: 26bit - FC: 118 - Card: 31576                 
#db# TAG ID: 2004ecf6b1 (31576) - Format Len: 26bit - FC: 118 - Card: 31576                 
#db# TAG ID: 2004ecf6b1 (31576) - Format Len: 26bit - FC: 118 - Card: 31576

                 

However in standalone mode, the card is not read at all. Is there something wrong with the firmware or am I doing something wrong?

Thanks in advance for any assistance!

entr0py

Member

Registered: 2015-10-02

Posts: 2

Re: pm3 standalone not reading LF cards

I wanted to post an update. I was able to get standalone reading for low frequency HID cards working, but at a price. Now high frequency cards like mifare are not longer being read.

I downgrade the software back to the initial commit of 2.2.0 (git revision 5ebdce4).

Does anyone have a working version that will read both high and low frequencies???

iceman

Administrator

Registered: 2013-04-25

Posts: 9,538

Website

Re: pm3 standalone not reading LF cards

Don't know if there ever was a standalone mode for HF...  but then I never used standalone mode.