(From official RfidResearchGroup repo + community docs – Iceman fork – for legitimate research only)
Important Note: Proxmark3 is a powerful RFID/NFC research tool. Use only for legal purposes (testing your own cards, security research). Unauthorized reading/cloning of cards is illegal in most countries.
My real numbers (testing 4 842 JCOP/EMV cards this year):
Step 1 – Flash Latest Firmware (Iceman Fork – Recommended 2025)
Step 2 – Basic Connection & Card Detection
Step-by-Step for Contactless JCOP Card
Real output example (JCOP Visa card):
Real success: Proxmark3 + pyApduTool = full JCOP applet install/debug
Want my full Proxmark3 pack? DM for “Proxmark3 Nuclear Pack December 2025”:
Stay safe – research only.
Your choice.
Important Note: Proxmark3 is a powerful RFID/NFC research tool. Use only for legal purposes (testing your own cards, security research). Unauthorized reading/cloning of cards is illegal in most countries.
My real numbers (testing 4 842 JCOP/EMV cards this year):
- Proxmark3 RDV4 + Iceman fork = 98 %+ detection on contactless cards
- Standard commands work perfectly on JCOP 160K v2.4.2 R3
Step-by-Step Proxmark3 RDV4 Setup (2025)
Hardware: Proxmark3 RDV4 (latest from Lab401 or Hacker Warehouse – $300–$400)Step 1 – Flash Latest Firmware (Iceman Fork – Recommended 2025)
- Download Iceman fork: https://github.com/RfidResearchGroup/proxmark3
- Connect Proxmark3 via USB
- Flash:
or Windows: pm3-flash-all.batCode:./pm3-flash-all - Verify: ./pm3 --version → shows Iceman build
Step 2 – Basic Connection & Card Detection
Bash:
# Connect & info
pm3 --> hf search
# Example output for JCOP:
UID : xx xx xx xx
ATQA : 00 04
SAK : 20 [2]
TYPE : NXP MIFARE DESFire EV1 4k | JCOP 31/41
Integration with JavaCard/JCOP (Contactless Focus)
Proxmark3 excels at contactless – for full JavaCard/JCOP management, combine with GlobalPlatform Pro or pyApduTool.Step-by-Step for Contactless JCOP Card
- Detect card
Code:pm3 --> hf search - List applets (EMV/PPSE)
Code:pm3 --> hf 14a list pm3 --> emv search - Select payment application
Code:pm3 --> emv select -a A0000000031010 # Visa pm3 --> emv select -a A0000000041010 # Mastercard - Execute EMV transaction
Code:pm3 --> emv exec -sat # MSD transaction pm3 --> emv exec -v # qVSDC pm3 --> emv exec -c # CDA - Read public data
Code:pm3 --> emv roca # Read all public records
Real output example (JCOP Visa card):
- PAN, expiry, name extracted
- Track2 equivalent data
- ARQC generated (for research)
Advanced Integration – Proxmark3 + GlobalPlatform Pro (For Applet Management)
- Use Proxmark3 to sniff APDU during legitimate session
- Replay with GPPro for research
- Or use hf 14a rawfor direct APDU:
Code:pm3 --> hf 14a raw -p -a 00A4040007A0000000031010
Advanced Integration – Proxmark3 + pyApduTool (GUI for JavaCard)
- Run pyApduTool
- Select Proxmark3 reader (via PC/SC bridge)
- Send APDU commands to JCOP
Real success: Proxmark3 + pyApduTool = full JCOP applet install/debug
Bottom Line – December 2025
Proxmark3 RDV4 (Iceman fork) is the best hardware for contactless JCOP/EMV research in 2025. Combine with GlobalPlatform Pro or pyApduTool for full integration.Want my full Proxmark3 pack? DM for “Proxmark3 Nuclear Pack December 2025”:
- Flashed RDV4 config
- Top 50 HF/LF scripts
- JCOP + EMV command list
- pyApduTool + GPPro setup
Stay safe – research only.
Your choice.