NFC P2P Android - Arduino

[hamzahmsdq]

Hello everyone, i wanna ask about p2p nfc-arduino, i'm using nfc shield v2.0 for my final assigment build securing lock door using nfc on smartphone. using mode p2p, the project is when user send a payload+record(ndef message) from smartphone using "LEGIC NFC P2P EXAMPLE" application and tapping it to nfc shield then nfc shield on door will read it, and check if ndef message true, the system will open. and i get stuck on condition system or arduino (microcontroller) didnt read any condition true or false. here i give some screenshot. can u help me guys?
thanks
-hamzah