Two of my apps on my iPhone 4S won't work?

Under cellular data it says the apps are on, but when I try to open them it says cellular data is not on for this app. It used to be one, then it became two.

Check Settings > General > Restrictions: first enable it to change, then disable it when finished > scroll down to ALLOW CHANGES section > Cellular Data Use > use Allow changes.

  • Two different computers, two different iTunes.can I use the same Apple ID? I have iTunes on my computer that I use for my iPhone, and my mon just got an iPod Touch and wants me to fill it for her. I'm going to use her computer to do this, which currently does not have iTunes. Once I download iTunes, can I use my own Apple ID to download songs and apps onto her iPod? Is it possible to do that without disturbing what's on my phone, or do I have to make a whole new iTunes account for her?
  • Is there a way two record two instruments into an iPhone? I was planning on playing a duet with a friend where I'm on the guitar and they are on the violin and it's just something I want to post on Instagram, nothing special. Is there a cheap device or method that I can record both of us as we're playing directly into my phone?
  • Is a two year contract actually two years? I just recently got a new job that will allow me to splurge a little bit and finally upgrade my phone. I hope to switch from Straight talk over to AT&T so i don't have to continue paying $300+ when I need a new phone. The iphone 6 is about $100 with AT&T s two year contract, and then I'm eligible for an upgrade. Will I be held in that two year contract or would I be able to upgrade earlier to a more recent version? How much does it generally cost to upgrade early?
  • If I turned my iPhone 5s off for two years and turned it back on, would it still work? I curious. If I didn't take it off my iPhone plan thingamajig and simply shut it down, no communication for two years, would it be able to come back on?