This version of Unity is unsupported.

SystemInfo.unsupportedIdentifier

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 } } }