title: Some NFC phones can not read tags
body: <p>I came across an interesting problem. When I tested NFC on different devices I noticed some NFC devices can not read user memory of RFID tag (ISO 15693). Samsung Galaxy S3, Galaxy Mini 2, Sony Xperia Z2 10" can read all data on tags. But for example with Samsung Galaxy Young (I tried two devices Galaxy Young) can not read user memory although NFC is available. Galaxy Young can read only info about tag like UID, AFI, DSFID, etc.</p>
  
  <p>Some idea how I can recognize devices which can not read user memory of RFID tags? Is there any explanation of why Galaxy Young can not read user memory?</p>