title: APDU MIFARE Classic 4K read value at specific sector/block
body: <p>I'm trying to read some data from my MiFare Classic 4K smartcard. I already know the exact sector/block location of the data (because of a dump via Android), but I don't know how to show it in SpringCard Prox'N'Roll. </p>
  
  <p>I know how to access my card and I did a lot of research, but I'm not able to find out how to get data because I don't really understand the values needed in a APDU command message. </p>
  
  <p>It might be something like this?</p>
  
  <pre><code>CLA: FF
  INS: B0/B2/CA ?
  P1-P2: ???
  LC Field: ??
  Data field: ??
  </code></pre>
  
  <p><a href="http://www.cardwerk.com/smartcards/smartcard_standard_ISO7816-4_6_basic_interindustry_commands.aspx#chap6_1" rel="nofollow">http://www.cardwerk.com/smartcards/smartcard_standard_ISO7816-4_6_basic_interindustry_commands.aspx#chap6_1</a></p>
  
  <p>I want to read sector 32, block 140.</p>