如何注册设备以接收推送通知

Question

我正在尝试将设备注册到精确位置，但收到消息：

        public string Register()
    {

        String identityId = Credentials.GetIdentityId();
        RegisterDeviceRequest registerDevice = RegisterDevice(identityId);

        AmazonCognitoSyncClient AmazonCognitoSyncClient = new AmazonCognitoSyncClient(AwsCredentials, RegionEndpoint.EUWest1);
        SynAmazonCognitoSyncClient(registerDevice, AmazonCognitoSyncClient);

        return null;
    }

    private static System.Threading.Tasks.Task<RegisterDeviceResponse> SynAmazonCognitoSyncClient(RegisterDeviceRequest registerDevice, AmazonCognitoSyncClient AmazonCognitoSyncClient)
    {
        return AmazonCognitoSyncClient.RegisterDeviceAsync(registerDevice);
    }

但是我在SynAmazonCognitoSyncClient上收到了超时

并没有进入精确的仪表板，我没有注册任何设备。

有些身体还有其他形式可以将设备注册到axamarin形式的aws中？