How to get a passcode screen to appear on my IPhone 4 S?

Help! I'm unable to get to a log-in screen on IPhone 4 S. I slide to unlock. The phone then goes to the icons screen and states "SEARCHING" in the top left-hand corner. I can't telephone or search the internet because my IPhone is not connected to the internet. Does anyone know how to fix this? I created an account and it worked fine 1 month ago. I didn't use the phone for 1 month, and now this problem started when I powered the phone on. My subscription should be good for another year.

Contact the apple store service for help. & for the password just look in the settings.