Samsung Galaxy Note 3 Instruction Manual page 521

Information
• If you perform sending operations from the
terminal and the other device at the same
time, sending may fail.
• While the screen is locked, NFC tag
information cannot be sent/received.
• When NFC/Osaifu-Keitai Lock is set,
Android Beam cannot be used.
• For some applications, Android Beam is
unavailable.
• Actual communications are not guaranteed
for all devices equipped with Reader/Writer,
P2P.
Data communication
519