This is the lf tune. With keyfob it’s ok but not the chip.
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Thanks for the great video explanation. I see the reading now, But still nothing with lf search.
I share another video what I’ve tried now.
Odd… that lf search seems to be finishing quite fast… what version of client and firmware are you running?
Ultimately though it looks like a good attempt regardless. The chip might just be borked. Let me know about the versions and we’ll go from there, but replacement may just be necessary 
Isn’t this all info, that I shared earlier?
[=] Session log /home/pixitux/.proxmark3/logs/log_20230507.txt
[+] loaded from JSON file /home/pixitux/.proxmark3/preferences.json
[=] Using UART port /dev/ttyACM0
[=] Communicating with PM3 over USB-CDC
8888888b. 888b d888 .d8888b.
888 Y88b 8888b d8888 d88P Y88b
888 888 88888b.d88888 .d88P
888 d88P 888Y88888P888 8888"
8888888P" 888 Y888P 888 "Y8b.
888 888 Y8P 888 888 888
888 888 " 888 Y88b d88P
888 888 888 "Y8888P" [ ☕ ]
[ Proxmark3 RFID instrument ]
MCU....... AT91SAM7S512 Rev A
Memory.... 512 KB ( 60% used )
Client.... Iceman/master/v4.16191-348-g149cc025c 2023-05-07 21:24:18
Bootrom... Iceman/master/v4.16191-348-g149cc025c 2023-05-07 21:24:07
OS........ Iceman/master/v4.16191-348-g149cc025c 2023-05-07 21:24:16
Target.... PM3 GENERIC
[usb] pm3 --> hw ver
[ Proxmark3 RFID instrument ]
[ CLIENT ]
Iceman/master/v4.16191-348-g149cc025c 2023-05-07 21:24:18 24e01a23a
compiled with............. GCC 11.3.0
platform.................. Linux / x86_64
Readline support.......... present
QT GUI support............ present
native BT support......... present
Python script support..... present
Lua SWIG support.......... present
Python SWIG support....... present
[ PROXMARK3 ]
firmware.................. PM3 GENERIC
[ ARM ]
bootrom: Iceman/master/v4.16191-348-g149cc025c 2023-05-07 21:24:07 24e01a23a
os: Iceman/master/v4.16191-348-g149cc025c 2023-05-07 21:24:16 24e01a23a
compiled with GCC 10.3.1 20210621 (release)
[ FPGA ]
LF image 2s30vq100 2022-03-23 17:21:05
HF image 2s30vq100 2022-03-23 17:21:16
HF FeliCa image 2s30vq100 2022-03-23 17:21:27
HF 15 image 2s30vq100 2022-03-23 17:21:38
[ Hardware ]
--= uC: AT91SAM7S512 Rev A
--= Embedded Processor: ARM7TDMI
--= Internal SRAM size: 64K bytes
--= Architecture identifier: AT91SAM7Sxx Series
--= Embedded flash memory 512K bytes ( 60% used )
[usb] pm3 -->
And the chip is 2x12mm bioglass encased 125kHz Atmel T5577
Ah yeah so it’s not looking good. The only other thing I would try at this point is some of the special recovery commands for.tbr t5577;
I see. I’ve tried the commands from the bricked T5577 page 4 times over. In the best positions from lf tune and no luck I’m afraid.
Hmm bummer. Ok if you reply to your order confirmation email it will create a ticket. Mention this forum thread and we’ll get you a replacement shipped out ASAP… Assuming that’s what you want to do. Otherwise we can offer you a full refund. Let me know how we can make this right.
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Hi. I’ve got a bad xEM RFID Chip. And I want a replacement. I was told to mention this thread My chip don't work - #18 by amal
I have received your ticket. We will ship you a replacement NExT unit, if you are ok with that.
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I’ve got my NExT RFID- NFC implant now. But still no reading with proxmark3. Can’t read implant or the keyfobs that I’ve got. I can read NFC with my phone. Could it be the proxmark3 that’s borked? I get a good value drop with lf tune attach a picture.
What version of firmware and client are you using?
Tried an update today. Nothing new. Also tried the windows version without luck.
8888888b. 888b d888 .d8888b.
888 Y88b 8888b d8888 d88P Y88b
888 888 88888b.d88888 .d88P
888 d88P 888Y88888P888 8888"
8888888P" 888 Y888P 888 "Y8b.
888 888 Y8P 888 888 888
888 888 " 888 Y88b d88P
888 888 888 "Y8888P" [ ☕ ]
[ Proxmark3 RFID instrument ]
MCU....... AT91SAM7S512 Rev A
Memory.... 512 KB ( 60% used )
Client.... Iceman/master/v4.16191-421-gf17ce1fd6 2023-05-28 15:52:09
Bootrom... Iceman/master/v4.16191-421-gf17ce1fd6 2023-05-28 15:52:00
OS........ Iceman/master/v4.16191-421-gf17ce1fd6 2023-05-28 15:52:08
Target.... PM3 GENERIC
[usb] pm3 --> hw ver
[ Proxmark3 RFID instrument ]
[ CLIENT ]
Iceman/master/v4.16191-421-gf17ce1fd6 2023-05-28 15:52:09 51be408f7
compiled with............. GCC 11.3.0
platform.................. Linux / x86_64
Readline support.......... present
QT GUI support............ present
native BT support......... present
Python script support..... present
Lua SWIG support.......... present
Python SWIG support....... present
[ PROXMARK3 ]
firmware.................. PM3 GENERIC
[ ARM ]
bootrom: Iceman/master/v4.16191-421-gf17ce1fd6 2023-05-28 15:52:00 51be408f7
os: Iceman/master/v4.16191-421-gf17ce1fd6 2023-05-28 15:52:08 51be408f7
compiled with GCC 10.3.1 20210621 (release)
[ FPGA ]
LF image 2s30vq100 2023-05-24 14:12:56
HF image 2s30vq100 2023-05-26 19:50:53
HF FeliCa image 2s30vq100 2023-05-24 14:12:58
HF 15 image 2s30vq100 2023-05-24 14:12:57
[ Hardware ]
--= uC: AT91SAM7S512 Rev A
--= Embedded Processor: ARM7TDMI
--= Internal SRAM size: 64K bytes
--= Architecture identifier: AT91SAM7Sxx Series
--= Embedded flash memory 512K bytes ( 60% used )
[usb] pm3 --> hw tune
[=] ---------- Reminder ------------------------
[=] `hw tune` doesn't actively tune your antennas,
[=] it's only informative.
[=] Measuring antenna characteristics, please wait...
🕛 9
[=] ---------- LF Antenna ----------
[+] LF antenna: 25.92 V - 125.00 kHz
[+] LF antenna: 21.23 V - 134.83 kHz
[+] LF optimal: 26.38 V - 126.32 kHz
[+] Approx. Q factor (*): 6.6 by frequency bandwidth measurement
[+] Approx. Q factor (*): 7.7 by peak voltage measurement
[+] LF antenna is OK
[=] ---------- HF Antenna ----------
[+] HF antenna: 14.99 V - 13.56 MHz
[+] Approx. Q factor (*): 4.4 by peak voltage measurement
[+] HF antenna is OK
(*) Q factor must be measured without tag on the antenna
[+] Displaying LF tuning graph. Divisor 88 (blue) is 134.83 kHz, 95 (red) is 125.00 kHz.
I dunno this seems ok… so odd you’re not getting reads even for your key fobs? What are the fobs? Are they T5577? Have they been programmed yet?
My bad! Thanks for hanging with me. I thought the LF/HF XFD was some kind of smaller key fobs. But I’ve got reading on a door key fob I have, so that’s weird. Tried different usb ports too, usb 2 and usb 3 another cable and nothing changes. I saw this post and wonder about his high numbers around 70 V LF and sometimes HF antenna going hairwire in recent master revision · Issue #819 · RfidResearchGroup/proxmark3 · GitHub
Could you re-word this!?
Or, is this what you are saying below?
You thought the xFD’s were key fobs
You tried an
lf read and `hf read’ on your proxmark and got no results, then you also tried an actual key fob and got a reading?Is that correct?
If so, thats not weird, that is expected
If you mean, You tried the xFD’s and realised they would work ( except to maybe illuminated the LED )
Then you tried an actual key fob and got a reading!
Then you tried your NExT and could not get a reading, and you think that is weird?
If this is the case, I would ask a couple of things and suggest a couple of things?
The key fob you successfully scanned, was that HF or LF?
You only just got sent your NExT to replace your “Failed” xEM
The recent testing you have done on your new NExT, has that been installed? If so, how many days ago was it installed?
For an xSeries implant, we wouldn’t expect to see good reliable reads until after the 2 week mark, and it looks like you only recieved your NExT 3 days ago.
Are you trying to read your NExT through your skin or have you just ejected it from the needle? ( Hopefully not trying to read it IN the needle )
Did you remove you xEM? if so, you could do some really good testingwith your Proxmark
- It appears your proxmark is working ( Reading other Fobs )
- Your xEM wouldn’t read, your NExT won’t read!? The chances of 2 implants not reading is highly unlikely.
The only thing left is you and something you are doing / not doing. But don’t worry, you are not the first person to struggle getting reads off a Proxmark, she’s a fickle bitch, but once you learn how to handle her, you will have no more issues.
Hopefully we can get your sorted, but we will need to get some more answers FROM you, before we can GIVE you more.
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