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J3D081 default applet deleted

JavaCard Applet Development Related Questions and Answers.
cdosrun
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J3D081 default applet deleted

Postby cdosrun » Sat Dec 02, 2017 5:15 pm

Hello,

I should be really grateful for some pointers. I bought a J3D081 as a first javacard and tried a number of applets. However, I think I managed to delete the default applet off the card (the only thing showing in response to gp -l is the ISD). The ATR of the card is now 3B80800101

Is this recoverable? I cannot find where to obtain the default applet from or how to change the ATR.


Thank you,

Andrew

jennyvenus
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Re: J3D081 default applet deleted

Postby jennyvenus » Thu Dec 07, 2017 11:01 pm

You can use snooper.exe to see the packages and instances inside the card

http://www.microissuer.com/download_en.html

jennyvenus
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Re: J3D081 default applet deleted

Postby jennyvenus » Thu Dec 07, 2017 11:08 pm

001.png

Select a card reader in the list

002.png

Click the Java Card Manager icon on the left toolbar

003.png

Fill in the corresponding key, such as 40-4f, then read the card status, or something else
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