You can only use Android's Ndef
/NdefFormatable
tag technologies if the operating system supports the Type V NDEF tag platform specification for that tag. Particularly with Android versions prior to 4.2, there is only limited support for NDEF on NfcV (ISO 15693) tags.
If Android does not list Ndef
/NdefFormatable
for your tag, you will have to stick to using the tag's specific command set with the NfcV.transceive()
-method.