Version: 2017.2

SystemInfo.unsupportedIdentifier

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public static string unsupportedIdentifier ;

Description

Value returned by SystemInfo string properties which are not supported on the current platform.

using UnityEngine;
using System.Collections;

public class NewBehaviourScript : MonoBehaviour { void Start() { if (SystemInfo.unsupportedIdentifier != SystemInfo.deviceUniqueIdentifier) { // use SystemInfo.deviceUniqueIdentifier } } }