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RfidResearchGroup / ChameleonMini

The ChameleonMini is a versatile contactless smartcard emulator compliant to NFC. The ChameleonMini was first developed by KAOS. This is NOT the official repo for KAOS's ChameleonMini. For further information see the Getting Started Page
http://chameleontiny.com/help/
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Chameleon RevG brick? #63

Closed shellchocolat closed 3 years ago

shellchocolat commented 3 years ago

Hello,

The device appeared on /dev/ttyACM0, then i upgraded the firmware like:

$ sudo avrdude -c flip2 -p ATXMega128A4U -B 60 -P usb -U application:w:Chameleon-Mini.hex:i -U eeprom:w:Chameleon-Mini.eep:i

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e9746 (probably x128a4u)
avrdude: NOTE: "application" memory has been specified, an erase cycle will be performed
         To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file "Chameleon-Mini.hex"
avrdude: writing application (123898 bytes):

Writing | ################################################## | 100% 2.47s

avrdude: 123898 bytes of application written
avrdude: verifying application memory against Chameleon-Mini.hex:
avrdude: load data application data from input file Chameleon-Mini.hex:
avrdude: input file Chameleon-Mini.hex contains 123898 bytes
avrdude: reading on-chip application data:

Reading | ################################################## | 100% 0.72s

avrdude: verifying ...
avrdude: 123898 bytes of application verified
avrdude: reading input file "Chameleon-Mini.eep"
avrdude: writing eeprom (124 bytes):

Writing | ################################################## | 100% 0.03s

avrdude: 124 bytes of eeprom written
avrdude: verifying eeprom memory against Chameleon-Mini.eep:
avrdude: load data eeprom data from input file Chameleon-Mini.eep:
avrdude: input file Chameleon-Mini.eep contains 124 bytes
avrdude: reading on-chip eeprom data:

Reading | ################################################## | 100% 0.01s

avrdude: verifying ...
avrdude: 124 bytes of eeprom verified

avrdude done.  Thank you.

which seems ok. but when i try to verify if everything is ok. It doesn't show up anymore into dmesg output. Well, not entierely true. I get:

[98615.909077] usb 5-1.1: New USB device found, idVendor=16d0, idProduct=04b2, bcdDevice= 0.01
[98615.909082] usb 5-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=220
[98615.909084] usb 5-1.1: Product: Chameleon-Mini
[98615.909085] usb 5-1.1: Manufacturer: Kasper & Oswald GmbH
[98615.909087] usb 5-1.1: SerialNumber: 9355438xxxxxxxxxxxxxxxxxx
[98615.962471] cdc_acm 5-1.1:1.0: ttyACM0: USB ACM device

which seems ok, but not. I had the udev rules. But it doesn't help. I don't really figure out what is the meaning of the last line of the dmesg output.

Any idea what is going on?

BTW, ModemManager is not running of my machine:

$ sudo systemctl status ModemManager
● ModemManager.service
     Loaded: masked (Reason: Unit ModemManager.service is masked.)
     Active: inactive (dead) since Thu 2021-04-15 15:54:44 CEST; 17h ago
   Main PID: 40629 (code=exited, status=0/SUCCESS)
        CPU: 30ms

Any tip to fixe both my Chameleon and proxmark ?

shellchocolat commented 3 years ago

I fixed it.

When i look at /dev with the chameleon unplugged i still have /dev/ttyACM0 present which is not ok.

I just rm /dev/ttyACM0, then plugged the Chameleon on my computer, it was alive !!!