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#1 2017-05-13 14:06:16

jramb0
Contributor
Registered: 2016-11-07
Posts: 25

[solved] Your LF / HF Antenna is unusable

Hey guys,

I haven't used my proxmark3 for quite a while like 3-4 months. I decided to use it today, and when I re-setup my computer for (installed driver, etc.) and typed "HW Tune", I got the following error:

Proxmark3 RFID instrument
bootrom: master/v2.2.0-264-gd1057e7-suspect 2016-11-03 13:22:59
os: master/v2.2.0-264-gd1057e7-suspect 2016-11-03 13:23:02
LF FPGA image built for 2s30vq100 on 2015/03/06 at 07:38:04
HF FPGA image built for 2s30vq100 on 2015/11/ 2 at  9: 8: 8

uC: AT91SAM7S256 Rev B
Embedded Processor: ARM7TDMI
Nonvolatile Program Memory Size: 256K bytes. Used: 185644 bytes (71%). Free: 76500 bytes (29%).
Second Nonvolatile Program Memory Size: None
Internal SRAM Size: 64K bytes
Architecture Identifier: AT91SAM7Sxx Series
Nonvolatile Program Memory Type: Embedded Flash Memory
pm3 --> hw tune

Measuring antenna characteristics, please wait...
# Your LF antenna is unusable.
# Your HF antenna is unusable.


HW Version:
pm3 --> hw version
[[[ Cached information ]]]

Prox/RFID mark3 RFID instrument
bootrom: master/v2.2.0-264-gd1057e7-suspect 2016-11-03 13:22:59
os: master/v2.2.0-264-gd1057e7-suspect 2016-11-03 13:23:02
LF FPGA image built for 2s30vq100 on 2015/03/06 at 07:38:04
HF FPGA image built for 2s30vq100 on 2015/11/ 2 at  9: 8: 8

uC: AT91SAM7S256 Rev B
Embedded Processor: ARM7TDMI
Nonvolatile Program Memory Size: 256K bytes. Used: 185644 bytes (71). Free: 76500 bytes (29).
Second Nonvolatile Program Memory Size: None
Internal SRAM Size: 64K bytes
Architecture Identifier: AT91SAM7Sxx Series
Nonvolatile Program Memory Type: Embedded Flash Memory



The device was well kept in the box... so I am not too sure how the antenna could have got damaged?

The last version I was using was "20161115-unofficial".

Does that mean that I need to change the antenna or buy a new one or it is a normal behaviour that can happen with the hardware?

Thanks!

Last edited by jramb0 (2017-05-15 02:45:28)

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#2 2017-05-13 18:15:05

iceman
Administrator
Registered: 2013-04-25
Posts: 9,538
Website

Re: [solved] Your LF / HF Antenna is unusable

standard recommendations;

check your antenna wires and connectors.
upgrade firmware with latest source from github

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#3 2017-05-14 03:47:42

jramb0
Contributor
Registered: 2016-11-07
Posts: 25

Re: [solved] Your LF / HF Antenna is unusable

Thanks Iceman,

I managed to update the bootrom and fullimage through a vm as my computer was playing up with the usb.

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#4 2017-05-14 08:04:39

iceman
Administrator
Registered: 2013-04-25
Posts: 9,538
Website

Re: [solved] Your LF / HF Antenna is unusable

thats nice but your problem, whats the status?

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#5 2017-05-14 08:12:33

jramb0
Contributor
Registered: 2016-11-07
Posts: 25

Re: [solved] Your LF / HF Antenna is unusable

it is solved.

Updating the bootrom and full image did the job.

Thanks

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#6 2017-05-14 08:36:23

iceman
Administrator
Registered: 2013-04-25
Posts: 9,538
Website

Re: [solved] Your LF / HF Antenna is unusable

Good to hear, may I suggest that you edit your first post and add the prefix [solved] to the subject

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