Sometimes your cellular data will stop working on your iPhone or iPad. Assuming you are not just in a poor coverage area, there are a few generalized steps you can take that will fix a lot of cellular data not working bugs. The Obvious Stuff If you contact the Genius Bar or your cell carrier regarding your troubles, the first thing you’ll hear is “Have you tried turning it off and on again?” Restarting is troubleshooting 101 because it works so well, so make sure you give it a shot first. Hold down the power button on your iPhone until the “Slide to Power Off”… Read more