GCM 401 Not-Authorized
<p>I am working with Android GCM. My application is live and it contains hundreds of users. I am using back-end of .NET (SOAP services with MS-SQL). </p>

<p>I've now accidentally deleted my GCM Server Key from Google Developers Console. Now, I am trying to send a notification, but it's showing a <em>not authorized</em> error response.</p>

<p>Help me. How to send notifications now? I don't wanna lose my users. That's why new Server Key is not an option for me. If you've good solution, please let me know. Thanks.</p>