Proxmark3 community

threezhiwang

Contributor

Registered: 2016-03-08

Posts: 10

hf 14a reader return iso14443a card select failed

Hi all,I am new user.

proxmark3> hw v
#db# Prox/RFID mark3 RFID instrument
#db# bootrom: /-suspect 2015-05-24 09:54:53
#db# os: /-suspect 2015-05-24 09:56:23
#db# HF FPGA image built on 2015/03/09 at 08:41:42
uC: AT91SAM7S256 Rev D
Embedded Processor: ARM7TDMI
Nonvolatile Program Memory Size: 256K bytes
Second Nonvolatile Program Memory Size: None
Internal SRAM Size: 64K bytes
Architecture Identifier: AT91SAM7Sxx Series
Nonvolatile Program Memory Type: Embedded Flash Memory

proxmark3> hw tune

Measuring antenna characteristics, please wait.........
# LF antenna: 29.43 V @   125.00 kHz
# LF antenna: 33.14 V @   134.00 kHz
# LF optimal: 38.50 V @   129.03 kHz
# HF antenna:  9.82 V @    13.56 MHz
Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.

proxmark3> hw tune

Measuring antenna characteristics, please wait.........
# LF antenna: 29.29 V @   125.00 kHz
# LF antenna: 33.14 V @   134.00 kHz
# LF optimal: 38.36 V @   129.03 kHz
# HF antenna:  9.25 V @    13.56 MHz
Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.

proxmark3> hf 14a reader
iso14443a card select failed

why?
thanks everyone

iceman

Administrator

Registered: 2013-04-25

Posts: 9,538

Website

Re: hf 14a reader return iso14443a card select failed

distance between antenna and tag needs to be at least 2-3cm for 14a.

threezhiwang

Contributor

Registered: 2016-03-08

Posts: 10

Re: hf 14a reader return iso14443a card select failed

distance between antenna and tag needs to be at least 2-3cm for 14a.

thanks