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  1. #1
    Registered User
    Join Date
    Dec 2006
    Posts
    22

    Can't access MiFare4K tag in Emulator with signed Midlet which works on real device

    Hi,

    I have written a Midlet to access the Mifare4K tag and try to read block zero.
    I have signed the Midlet. It works well on a real device (nokia 6212).


    I have created a new Mifare4K tag in the Nokia 6212 Emulator. This is an image of the Nokia 6212 tag.
    When i try to access the internal tag in the Emulator i get the error message that read is failed. This is the same signed with a certificate midlet.

    Anybody who knows what could be a reason for this problem?

    Regards,

    Anand

  2. #2
    Nokia Developer Champion
    Join Date
    Feb 2009
    Location
    Noida, India
    Posts
    3,073

    Re: Can't access MiFare4K tag in Emulator with signed Midlet which works on real devi

    On emulator try the unsigned midlet... emulators dont require signed midlets.

    thanks,
    ~Amitabh

  3. #3
    Registered User
    Join Date
    Dec 2006
    Posts
    22

    Re: Can't access MiFare4K tag in Emulator with signed Midlet which works on real devi

    Hi,

    Thank you for your response.

    I did but no difference. It still refuses to read the internal tag.
    I tried both with differnt default keys

    { (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
    (byte) 0x00 };

    { (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
    (byte) 0xff };

    Do i need any keys to read from the internal tag?

    Regards,

    Anand

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