title: Base address requirement for NDEF messages on Type-5 tags?
body: <p>I am trying to program an NDEF-URL into a Type-5 NFC tag. When I program this message into block zero of the tag, my android phone can read it just fine and successfully redirects to the URL www.abc.com:
  <a href="https://i.stack.imgur.com/jtBNc.png" rel="nofollow noreferrer">Picture of NDEF URL Message</a></p>
  
  <pre><code>block 00 - E1 40 40 00
  block 01 - 03 0C D1 01
  block 02 - 08 55 01 61
  block 03 - 62 63 2E 63
  block 04 - 6F 6D FE FF
  </code></pre>
  
  <p>However, if I erase the tag, and reprogram the message to start at block-1, it will not work.</p>
  
  <p>My application already works with tags which have information up to block-10, and I am likely unable to change the mapping. I was hoping to add an NDEF record to this tag starting at a non-zero block.</p>
  
  <p>Is there anyway that the message needs to be reformatted to use a different starting block or is it a requirement that the message start at block zero of the tag (and where is this requirement documented, I cannot find it anywhere).</p>
  
  <p>Thanks!</p>