×

Discussion Board

Results 1 to 2 of 2
  1. #1
    Registered User
    Join Date
    May 2007
    Posts
    9

    Creating a 6131 readable external tag wth an external reader

    Hello All,

    I am trying to create a 6131 readable NFC tag using an external reader.
    Currently I have an application that writes a correctly formatted NDEF/Mifare message into Logical block 4-6 (see below) of a 1k Mifare tag.

    The problem I am having is writing a usable '6131' key to the tag.

    I have tried the following things to make my tag readable by a 6131:

    I have tried copying the sector trailer from a 6131 written tag which looks like
    Code:
    Sector X / Block 3
     00 00 00 00 00 00 7F 07 88 40 00 00 00 00 00 00
    The interesting thing is that I do not see the 'd3 f7 ...' key written there. Is the Key-A stashed somewhere else?

    I have tried producing a sector trailer with the 'd3 f7 ...' key in the Key-A position to no avail as well.

    Code:
    Sector X / Block 3
     d3 f7 d3 f7 d3 f7 7F 07 88 40 00 00 00 00 00 00

    I have seen that when 6131 initializes Sector 0 / Block 1 with a MAD block. I attempted to write that into my tag as well

    Code:
    Sector:0 Block: 1
    EB 01 03 E1 00 00 00 00 00 00 00 00 00 00 00 00

    Can anybody give me any tips about how to properly initialize a Mifare tag so a 6131 can read it ?

    Thanks in advanced for any tips!
    -best
    -greg



    Below is a dump of the tag I am currently generating:

    Code:
    Sector:0
    Block:0
    
     14 25 0B E2 D8 88 04 00 47 C1 24 57 C1 00 08 06
        %     ?  ?  ?        G  ?  $  W  ?
    
    Sector:0
    Block:1
    
     EB 01 03 E1 00 00 00 00 00 00 00 00 00 00 00 00
     ?        ?
    
    Sector:0
    Block:2
    
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    
    Sector:0
    Block:3
    
     00 00 00 00 00 00 FF 07 80 69 00 00 00 00 00 00
                       ?     ?  i
    Sector:1
    Block:0
    
     03 27 D1 01 23 55 03 38 31 2E 31 33 38 2E 34 2E
        '  ?     #  U     8  1  .  1  3  8  .  4  .
    
    Sector:1
    Block:1
    
     39 39 2F 41 42 43 2F 6D 65 64 69 61 2F 74 68 65
     9  9  /  A  B  C  /  m  e  d  i  a  /  t  h  e
    
    Sector:1
    Block:2
    
     5F 66 61 6C 6C 2E 61 73 70 3F 00 00 00 00 00 00
     _  f  a  l  l  .  a  s  p  ?
    
    Sector:1
    Block:3
    
     00 00 00 00 00 00 FF 07 80 69 00 00 00 00 00 00
                       ?     ?  i

  2. #2
    Regular Contributor
    Join Date
    Jul 2006
    Posts
    52

    Re: Creating a 6131 readable external tag wth an external reader

    Did you get it working?

Similar Threads

  1. error LNK2001: Please Help
    By sourish_khan in forum Symbian
    Replies: 9
    Last Post: 2006-04-19, 11:16
  2. S80 Platform SDK and Visual Studio .NET Linking Error
    By jayantjain in forum Mobile Java Tools & SDKs
    Replies: 1
    Last Post: 2005-10-07, 22:14
  3. CEikDialog Question
    By AdamBeck in forum Symbian
    Replies: 2
    Last Post: 2004-09-30, 19:40
  4. Dialogs within Symbian 6.0 based SDK
    By georgica1979 in forum Symbian User Interface
    Replies: 14
    Last Post: 2003-04-07, 15:29
  5. Unresolved external symbols problem
    By georgica1979 in forum Symbian User Interface
    Replies: 1
    Last Post: 2003-04-06, 13:26

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •