title: BLE service UUID--System.FormatException: 'Guid should contain 32 digits with 4 dashes (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).'
body: <p>I am writing a UWP code to connect with nearby BLE devices.
  In this line of code...</p>
  
  <pre><code>GattDeviceServicesResult result = await GetGattServicesForUuidAsync(
      new System.Guid("00001809-0000-1000-8000-00805F9B34FB"),
      BluetoothCacheMode.Uncached
  );
  </code></pre>
  
  <p>...it is giving me the error...</p>
  
  <blockquote>
    <p>System.FormatException: 'Guid should contain 32 digits with 4 dashes (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).'</p>
  </blockquote>
  
  <p>I have double checked the characterstic UUID  is 1809 and I have converted it to 128 bit UUID but still it gives error.</p>