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Wednesday , 12 February 2025
Home How To Initialize Unfused JAVA JCOP21 J2A040 Card

How To Initialize Unfused JAVA JCOP21 J2A040 Card

Initialize Unfused JAVA JCOP21 J2A040 Card

Hello hustlers! A whole lot of you have been spamming our email asking HOW TO INITIALISE UNFUSED JAVA JCOP21 J2A040 CARD so we have decided to write about it.

Supreme Hackers

Those of you who haven’t read our prior post calledΒ β€œDeploying the EMV bypass cloning using the β€œVisa-Cardβ€β€œΒ must go through that post by following the link below after reading this article.

In order to initialise an unfused Java J2A040 card, you must first download the software called β€œJavaCos Panel,” which you will download here through Mega (its virus/spyware/crap-free).

https://mega.nz/file/tkoSmKTT#ztQ3VvWvbjO3eziYEn5dtiwc0bP_iEs8c5Hudgs18Hs

Once the tool is downloaded, those who are still sceptical, feel free to scan it for viruses/malware. Once that’s done, you need to install that tool into your Windows-based OS (win 10 recommended).

After the installation of the softwareΒ β€œJavaCos Panel,” simplyΒ open the tool and you will see the following screen:
HOW TO INITIALIZE UNFUSED JAVA JCOP21 J2A040 CARD
From the screen above, click on β€œPyapdutool” and this should open the followingΒ β€œPyapdutool” software for you, like the screen below:
A whole lot of you have been spamming our email asking how INITIALIZE UNFUSED JAVA JCOP21 J2A040 CARDΒ so we have decided to write about it.
Once you manage to open the screen above, you need to be in your right senses to do the rest of the work, so if you are under the influence of being unable to focus right now, you must leave this until later, when you can focus and follow the steps to a T.

So if you continue, however, we will assume that you are sober and able to follow our instructions below:

#1.Β Click on the β€œConnect” button on your Pyapdutool.

#2. Then click on the menu tab called “Apdu,” whichΒ is located next to the Reader tab.

#3.Β Now you will see a bunch of fields ahead ofΒ β€œCLA,Β INS, P1, P2, LC, and LE.”

#4.Β Insert the numbers as we show in the boxes:

  • CLAΒ = 00
  • INSΒ = A4
  • P1Β = 04
  • P2Β = 00
  • LC = (leave blank; it will auto-populate)
  • LE= 10

#5. In the β€œData” field, you will insert the following by copying and pasting the key below:

  • C238E449F725B1510EAA699550CABA16

Once the key is inserted, it will create pairs like the following:

  • C2 38 E4 49 F7 25 B1 51 0E AA 69 95 50 CA BA 16

#6. After inserting the key above, you will click on theΒ β€œSend” button and it will give you the following message inside theΒ β€œinformation box.”

Connect successful.
Send:Β C2 38 E4 49 F7 25 B1 51 0E AA 69 95 50 CA BA 16 10
Recv:Β 90 00
Time used:Β 25.000 ms

At this time you will also see theΒ β€œLC” value is auto-populated toΒ β€œ10” that you left blank in step-4 above.

#7.Β Now you will remove all the numbers from theΒ β€œData” field, for e.g., removeΒ β€œC2 38 E4 49 F7 25 B1 51 0E AA 69 95 50 CA BA 16 10.” You will notice that it will also remove the value from “LC,” but don’t worry about it.

#8.Β NowΒ change the CLA values to the following: ”

  • CLAΒ = 00
  • INSΒ = F0
  • P1Β = 00
  • P2Β = 00
  • LCΒ = (should be blank)
  • LE ((should also be blank))

#9. After inserting the values above, you will click on theΒ β€œSend” button and it will give you the following message inside theΒ β€œinformation box.”

Connect successful.
Send:Β C2 38 E4 49 F7 25 B1 51 0E AA 69 95 50 CA BA 16 10
Recv:Β 90 00
Time used:Β 25.000 ms
Send:Β 00 F0 00 00
Recv:Β 90 00
Time used:Β 56.000 ms

#10.Β On the right side of the window, you will see a tab called “History.” Click on that, and you will see all the output data showing you that you successfully initialised your JCOP21 J2A040 card.

Congratulations! Your J2A040 card is now ready to go.

Just for your own reference, we are going to leave theΒ β€œData Key” and bothΒ β€œAPDU Values” for your ease below:

Data:Β C238E449F725B1510EAA699550CABA16

APDU:Β 00 A4 04 00 10 (insert with data key)

APDU:Β 00 F0 00 00 (insert to open and initialize the card)

Good luck; see you on the other side!

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