Write info in nfc tag with Arduino & NFC Shield


I try to write some info in a NFC Tag (NTAG203). I just buy an Arduino Leonardo and a NFC Shield v2.0. I'm a beginner in arduino, so I just ask for some help to do my program which can write some informations in the NFC tag.

thank you in advance


I'm just trying to write a ntag-203 too but nothing until now.