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  1. #1
    Registered User
    Join Date
    Feb 2009
    Posts
    28

    Question NFC reader and NFC phone UID

    Hi,

    I have a ACR122 NFC reader and a Nokia 6212 NFC phone. When I try to catch the UID of the
    phone with the NFC reader I get 16 hexadecimal number (normal) but if I delete a midlet and upload
    it again on the phone this "UID" is different.

    Code:
    1st time get UID: 13FF567DFDC00987.
    Delete and upload
    2nd time get UID: 13FF567DFEE34190.
    Delete and upload
    3rd time get UID: 13FF567566DDF678.
    Is it normal ? The application running on the reader get another number that the UID ?

    Thank in advance.

  2. #2
    Nokia Developer Champion
    Join Date
    Sep 2007
    Posts
    915

    Re: NFC reader and NFC phone UID

    Quote Originally Posted by loicmormont View Post
    Hi,

    I have a ACR122 NFC reader and a Nokia 6212 NFC phone. When I try to catch the UID of the
    phone with the NFC reader I get 16 hexadecimal number (normal) but if I delete a midlet and upload
    it again on the phone this "UID" is different.

    Code:
    1st time get UID: 13FF567DFDC00987.
    Delete and upload
    2nd time get UID: 13FF567DFEE34190.
    Delete and upload
    3rd time get UID: 13FF567566DDF678.
    Is it normal ? The application running on the reader get another number that the UID ?

    Thank in advance.
    From your talk it does not seems you used the Mifair card but i want to confrim Did you read Mifair Card ?

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