---
title: "keyUpdate(requestFlags:keyIdentifier:message:)"
framework: corenfc
role: symbol
role_heading: Instance Method
path: "corenfc/nfciso15693tag/keyupdate(requestflags:keyidentifier:message:)"
---

# keyUpdate(requestFlags:keyIdentifier:message:)

## Declaration

```swift
func keyUpdate(requestFlags flags: NFCISO15693RequestFlag, keyIdentifier: Int, message: Data) async throws -> (NFCISO15693ResponseFlag, Data)
```