Contact your service provider and check if your data is active. Also you need to check your APN settings with them. Try connecting to Wifi and see if u get the logo back
It's due to the wifi connection ..... at my friends wifi it startet working... I have nothin changed nothing installed.... rebootet my modem/router nothing changed...
Have to perform a hard reset..
Since the latest OS update this is the 2. Time something went wrong with wifi