I am working on Contactless card reader application for Nokia 603.I am working with the 4 byte MifareClassic cards ans application works fine for 4 byte UID mifare classic card.But now I have a requirement to support 7 byte UID mifare cards.

Till now i am using MFStandardConnection Interface to get the 4 Byte UID of MifareClassic card's connection to read/write.but while reading 7 byte UID card MFStandardConnection returns me null valeu.Due to this I am unable to read/write 7 byte UID mifare cards.

So please help me How can I read 7 byte UID mifare cards?

Thanks in advance !