I have problems with my N9, it seems that the phone is having problems with detecting NFC targets. E.g. When trying to detect a NFC passport it takes several tries before it actually detects it. Sometimes it is not detected at all. Using another phone model (Android based) It always detects the target.
I have also tried with other NFC tags and the result is the same, the android based phone is much better..
I suspect that the NFC RF level from the phone is to low, are there any settings somewhere which will increase the RF level strength of the NFC field, maybe a "secret" parameter for the nfcd? The QT mobility NFC API does not seem to contain any functions for setting such parameters..