Hi geri-m,
Usually, the MIDlets are not able to start to use the NFC capabilities if they don't call first this function:
com.sirit.nfc.Hardware.NFCRequestEnabledADD(true);
It should be placed in the early stages of your MIDlet, for instance, in the constructor of your MIDlet. Could you check this?
The manual is still a draft, so there are some mistakes (i.e. SE on a SIM card).
Best regards,
Jose