Proxmark3 community

Dose13

Contributor

Registered: 2019-09-26

Posts: 29

HF Antenna unusable [closed]

Hi all,

I am running a PM3 RDV4 since a view weeks. I was able to flash the device properly and was also able to read some HF cards. Since last week my device does not recognize the HF antenna any longer. The error message is: "HF antenna is UNUSABLE". When it first occured I restarted the device, made a git pull, compiled it and flashed it to the PM. At some point the antenna got back to work. Since 2 days the antenna is now unusable. I have a funny feeling that this is not a software issue rather then some hardware problems. Probably some more experienced people can have a closer look at my problem. Any help is welcome. Thank you in advance!

Start screen:

[=] Session log /home/dose/.proxmark3/log_20191104.txt
[=] Using UART port /dev/ttyACM0           
[=] Communicating with PM3 over USB-CDC           

 [ Proxmark3 RFID instrument ] 
          

 [ CLIENT ]          
  client: RRG/Iceman          
  compiled with GCC 7.4.0 OS:Linux ARCH:x86_64          

 [ PROXMARK3 RDV4 ]          
  external flash:                  present           
  smartcard reader:                present           

 [ PROXMARK3 RDV4 Extras ]          
  FPC USART for BT add-on support: absent           
          
 [ ARM ]
  bootrom: RRG/Iceman/master/76beb466 2019-11-03 19:57:23
       os: RRG/Iceman/master/76beb466 2019-11-03 19:57:40
  compiled with GCC 6.3.1 20170620

 [ FPGA ]
  LF image built for 2s30vq100 on 2019-07-31 at 15:57:16                                                                           
  HF image built for 2s30vq100 on 2018-09-03 at 21:40:23                                                                           

 [ Hardware ]           
  --= uC: AT91SAM7S512 Rev B          
  --= Embedded Processor: ARM7TDMI          
  --= Nonvolatile Program Memory Size: 512K bytes, Used: 276330 bytes (53%) Free: 247958 bytes (47%)          
  --= Second Nonvolatile Program Memory Size: None          
  --= Internal SRAM Size: 64K bytes          
  --= Architecture Identifier: AT91SAM7Sxx Series          
  --= Nonvolatile Program Memory Type: Embedded Flash Memory 
 

hw tune:

[usb] pm3 --> hw tune
          
[=] Measuring antenna characteristics, please wait...
          
[=] You can cancel this operation by pressing the pm3 button          
..
          
[+] LF antenna: 69,25 V - 125,00 kHz          
[+] LF antenna: 38,52 V - 134,83 kHz          
[+] LF optimal: 72,23 V - 126,32 kHz          
[+] LF antenna is OK  
          
[!] HF antenna is UNUSABLE           
          
[+] Displaying LF tuning graph. Divisor 88 is 134,83 kHz, 95 is 125,00 kHz.

hw status:

[usb] pm3 --> hw status
#db# Memory           
#db#   BIGBUF_SIZE.............40000          
#db#   Available memory........40000          
#db# Tracing           
#db#   tracing ................1          
#db#   traceLen ...............0          
#db# Currently loaded FPGA image           
#db#   mode.................... HF image built for 2s30vq100 on 2018-09-03 at 21:40:23          
#db# Flash memory           
#db#   Baudrate................24 MHz           
#db#   Init....................OK           
#db#   Memory size.............2 mbits / 256 kb           
#db#   Unique ID...............0xD567A882A786C125          
#db# Smart card module (ISO 7816)           
#db#   version.................v3.10           
#db# LF Sampling config           
#db#   [q] divisor.............95 ( 125.00 kHz )          
#db#   [b] bps.................8          
#db#   [d] decimation..........1          
#db#   [a] averaging...........Yes          
#db#   [t] trigger threshold...0          
#db#   [s] samples to skip.....0           
#db# LF T55XX config           
#db#            [r]               [a]   [b]   [c]   [d]   [e]   [f]   [g]          
#db#            mode            |start|write|write|write| read|write|write          
#db#                            | gap | gap |  0  |  1  | gap |  2  |  3          
#db# ---------------------------+-----+-----+-----+-----+-----+-----+------          
#db# fixed bit length (default) |  29 |  17 |  15 |  47 |  15 | N/A | N/A |           
#db#     long leading reference |  31 |  20 |  18 |  50 |  15 | N/A | N/A |           
#db#               leading zero |  31 |  20 |  18 |  40 |  15 | N/A | N/A |           
#db#    1 of 4 coding reference |  29 |  17 |  15 |  31 |  15 |  47 |  63 |           
#db#           
#db# Transfer Speed           
#db#   Sending packets to client...          
#db#   Time elapsed............500ms          
#db#   Bytes transferred.......345600          
#db#   Transfer Speed PM3 -> Client = 691200 bytes/s          
#db# Various           
#db#   DBGLEVEL................1          
#db#   ToSendMax...............-1          
#db#   ToSendBit...............0          
#db#   ToSend BUFFERSIZE.......2308          
#db#   Slow clock..............31577 Hz          
#db# Installed StandAlone Mode           
#db#   LF HID26 standalone - aka SamyRun (Samy Kamkar)          
#db# Flash memory dictionary loaded           
#db#   Mifare..................859 keys          
#db#   T55x7...................109 keys          
#db#   iClass..................7 keys        

Last edited by Dose13 (2019-11-12 08:30:48)

iceman

Administrator

Registered: 2013-04-25

Posts: 9,538

Website

Re: HF Antenna unusable [closed]

....  did you flash bootrom and then fullimage?

Dose13

Contributor

Registered: 2019-09-26

Posts: 29

Re: HF Antenna unusable [closed]

I did it with "./pm3-flash-all". I guess bootrom is included.

Dose13

Contributor

Registered: 2019-09-26

Posts: 29

Re: HF Antenna unusable [closed]

Good morning,

I´d like to close this post with the information that I got from lab401. At first I was advised to detach the antenna and remount it again. This made no difference at all. The error message that the antenna is not working kept coming. Lab401 informed that they´ll exchange my device shortly.