So.. I have a G900V. I cracked the screen, followed by a trip to the toilet :X
Ever since, I cannot make calls, rarely sms, but have great data?? Every app, sensor, sim status etc says I have reception, but the dialer just hangs at 0:00... Pulldown indicates "No Service" at the bottom. I had a similar problem with the s4, turned out to be one of those micro coaxial type antenna cables/connection. Have any ideas?