Latest Ergo F500 user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; Android 5.1.1; ERGO F500 Build/LMY49J) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/39.0.0.0 Mobile Safari/537.36	Chrome Webview 39	Android 5