3 horizontal lines top left screen of iPhone

You probably need to setup service for the device.

Call 1-800-MY-APPLE

Those three horizontal lines are on the top left section of the iPhone screen? They do not run all the way across the screen?

Can you take a picture of that screen with the three lines and post it here? (You will need to take that picture with another phone because those lines may not show up in a screenshot.)

Axel F.