Why does my iPhone say I have no cellular service?

I'm connected to Wi-Fi right now. Every time I go somewhere else 3G pops up and when I open Safari it says my device has no cellular data. Are you only allowed to use Wi-Fi for internet on iPhones?

Do a total restart by shutting down a minute or two and rebooting the iPhone. Simply pushing the center button is not a total restart.

You need to restart it. Hold down the sleep button on the top until it asks if you want to shut it off. After it's shut off, restart it. If that doesn't work, make sure you have cellular data turned on, it's in settings.

No. Cellular data of course is also available. Try restarting the phone and or switching the cellular data toggle on/off to see if it helps.

  • 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?
  • Why does my iPhone say No Service? - 3 I got an iPhone 5s and transferred everything from my 4s to it, and it doesn't have service? I have a phone that can't make calls or send texts? Does anyone know what's going on or how to fix it? I've already tried restarting my phone and the network settings.
  • Why does my iPhone say no service? - 2 Well I took a trip to Wisconsin and my Verizon iPhone stopped working the minute I got here! It keeps saying no service then it will search for about 5 min then say no service! There's no Verizon towers anywhere! And I don't have roaming on because I fear the charges? Well I don't know does Verizon charge for roaming?
  • Why does my iPhone say no service? - 1 My friend wants my iPhone 4 when I upgrade but his on O2 my phone is now unlocked to any service n we've got a sim cutter but I've been practicing with the sim cutter on my old sims n everytime I put it in the phone it says no service?