IPhone personal hotspot feature disappearing. Is there a solution?

On the iPhone 5, the personal hotspot feature is disappearing from the settings menu! However, when I go to settings, general, cellular, and enable personal hotspot, it says to contact my carrier. My account has the personal hotspot feature. Is there a solution? Note: I've done a network reset, as well as a restoration of the device.

Will apple care replace my iPhone?

If my iPhones service is off due to non payment and i lose it, can i still get a new one from the apple care i purchased when i first bought it?

Jailbreak Problems (unjailbreak)?

Ok, so I have an iPhone 4S, running iOS 6.1.1 and I'm wanting to unjailbreak due to iOS 7 and the fact that I'm selling this phone potentially. But, every time I try it on my computer I get error messages and then I fix that error and it jumps to another and another and so on. So then I tried updating it from my phone to the new update but when I try to do that it never loads the update it just sits there saying checking for update. I let it sit all night and it said the next morning same thing. But the thing is I can download the update on a computer but when I try to put it on the device it pops up with error messages. I'm getting very irritated trying to update to the latest iOS 6.1.4 I believe. So if anyone could help me it'd be very appreciated. Side note I have tried other computers. But not my grandfathers. But I have an iPhone 4S running iOS 6.1.1 and I'd like to know how to unjailbreak. Thanks! If anyone would like to text me and help feel free 806-663-0775

My iPhone charger won't charge my iPhone, but will charge other devices, why?

I've had my iPhone 4s for roughly 2 years now, no problems whatsoever. I've noticed, however, that over the past few months my charger usually takes a little wiggling to actually make my iPhone charge. It's gotten progressively worse, and tonight I found that I couldn't charge my iPhone with it at all!

It's charging via my Bose stereo right now. So I assumed it was simply my charger, and nothing to do with my iPhone. Just to be sure, I tried charging another device--my old iPod--with the same charger. It began charging the iPod, much to my surprise.

I'm so confused! Why is this happening? Is it my iPhone, or my charger? I'm at college and have no way of going to an Apple store.

Is there a away to block text message apps on iPhone 5 with AT&T?

I've been getting people harassing me for over a year and I block the numbers and then they text back a week later with a new number. Is there an app or a way I can block text message apps like pinger and text free from texting me? I've even changed my number and they have gotten my number still. Anything will help thank you.

Underwater Cases and Vacuum Seals?

So we just got a pool and I would love to start taking photos and videos with my iPhone 4. I've heard countless complaints about the brands such as DryCase, and how often the cases tear and destroy the devices inside. What should I trust my beloved iPhone with?

Sould I stay up to date with the latest gadgets?

I just bought an iPhone 5 a month ago but heard about the iPhone 5c or 5s whatever its gonna be called, comes out next month. Would is Tay uo to date with the latest gadgets like the new MacBook Air, new ipad, 2013/2014 cars and such? I don't have the money so I have to work a lot of overtime to get these gadgets!

Is wearing glasses bad for your eyes?

I'm 14 years old, and I just had my new glasses for the first time on Thursday 8-29-13. My right eye is 1.25, my left eye is 1.75.Is wearing glasses bad for my eyes? I noticed that after taking glasses off, my eyes got blurred for a while, then clear again. How long can I wear my glasses? How long do I have to wait to see after taking my glasses off? And what is best to keep my eyes from getting worse (If possible, I would like to keep my eyes from increasing the number).
Other things about my eyes, not necessary for my question. I usually have pink eyes. I can't even let a little drop of water into my eyes while i'm taking a bath. It gets sore and I have pink eyes if I let water gets into my eyes (of course tears is not count).It happens before and quite a few years before I got glasses. My doctor eyes examination told me that my eyes are healthy. But still I feel worried. I care about my health, I want to protect my health like protecting a brand new expensive Iphone.