Why does my iphone say no service?

I got a IPhone 4s literately 30 minutes ago! I was setting it up an i put my sim in and it says 'no service' on the top. Does anyone know how i could fix it?

Most likely because you are in a dead zone or a tunnel maybe. Try throwing at a wall.

Call your carrier

My iPad is the same past couple of days no service ooooooooooooo could be a ghost of apple woooohohohohoohoho lol.

Try another sim because your iPhone might not be on sim unlock so try orange, O2, vodafone, 3three, ect

Because a smartphone is smarter than you are? Not sure. Maybe because it's turned on.

Did you buy it second hand or from a shop? It might be carrier locked or SIM locked if the SIM card you are putting into it is not from the same provider it was originally bought with.

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