What API are you using to write the NFC tag data? Basic CoreNFC functionality only allows apps to write to a tag (Creating NFC Tags from Your iPhone). If what you mean by Write Virtual NFC is you want your app to turn into a tag so the reader can interact with it, this is not possible except for very specific use cases. You can read about the capabilities and requirements for these use cases in the following documents: NFC & SE Platform for secure contactless transactions HCE-based contactless transactions for apps in the European Economic Area (EEA) At this time, no other use cases are supported. Argun Tekant / DTS Engineer / Core Technologies .
Topic:
App & System Services
SubTopic:
Core OS
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