Disabling data usage on iPhone?

I'm upgrading from my old iPhone and I'm giving it to my kid sister as her first cellphone. She only needs talk and text functions, and won't be getting a data plan.

So, is there some way to disable data usage? Airplane mode isn't practical because that switches off talking and texting too. I also want the phone to be able to connect to our home wireless Internet - just no data transmission through the cellphone provider's wireless network. Possible, or does my sister just need to be really careful not to press the wrong buttons?

Iphone 4s phone charger problem?

My charger will not work in any outlet in my house! Other things work just not my charger. It works sometimes when i put it in a weird position. Anyone else have this problem?

Added (1). I've tried like 3 different chargers.

Making a Video for an Iphone App?

I'm currently making my own Iphone App. I want to make a teaser video similar to the one below:

Anyone can recommend a good place to look to produce a similar video? And possible budget I should put aside for it? I did look up on freelance sites such as Elance and Freelancer but they offer more on voiceover with images running on the video.

How Much Can an iPhone 4S hold? (16gb)?

I don't take a lot of photos or videos and I'm only really interested in Twitter and Facebook on my phone. I currently have 2000 songs on itunes. How many songs can a 16gb iPhone hold?

Sprint mobile credit/deposit?

I've had virgin mobile for the past two years. Now I want to switch to Sprint to purchase the iPhone 5. Being only 21 years old I don't know how my credit score would affect with trying to open a sprint account. I'm living in a dorm and I only pay my internet/cable bill that has my social security number on it. I make those payments on time. And have nothing in collections. Would I be able to open a sprint account without a hefty deposit?

How to unlock an iPhone 4 without Jailbreaking it?

I'm currently with Rogers and my contract is expired. I DO NOT WANT to go into another 3 year contact by getting a phone for 0 dollars (I will have to pay 50 dollars a month) So I'm going to try to get an iPhone off kigigi so I can pay with the plan I have now (no data) Problem is most of iPhones being sold are locked
How do I unlock without Jailbreaking it and how much will it cost?

What's the cheapest you can get an iPhone 4s?

For my birthday this August I'm asking for an iPhone 4s, my family doesn't have the most money in the world; so it would be the only present I get. Anyway, at the moment I have an iPod touch 4th generation, so I was thinking of selling that near my birthday to help my parents get the money.

I was looking on Amazon, and found an iPhone 4s for £295, is there any other places apart from eBay and Amazon where I could get a cheap white iPhone 4s?

Thank you so much! [:

P.S I don't want to get one on contract

How to import songs to iTunes from external hard drive?

I have all my songs on an external hard drive, and have recently bought a new laptop (PC). I have an iPhone so want to import all the songs from the hard drive onto the new laptop.

Is there any easy way to do this? I can only seem to "add folder to library", which takes AGES if you have to add every individual folder one by one…

I have my iPhone 3gs (NO TEXT ALERT TONE)?

I have my iPhone 3gs (NO TEXT ALERT TONE)

Just like some users of iphone I have a problem with the text alert tone of my iphone 3gs., I really don't know what to do., how to ON the text alert.

I just did it on the general settings and in sounds. And I already checked one of the alert tones there., how to fix it? I read some forums how to fixe it but I can't understand.

IPhone 5 is disabled from forgetting passcode?

Forget the passcode and now iPhone is disable. I've done recovery mode by switching off hold power and home button then opening iTunes to restore. The update begins to download then the iPhone disconnects about 10 minutes later with a pop up box saying about how "the iPhone is disabled, need passcode" blahblahblah, but the update is still downloading. Help?

The iPhone has not been connected with iTunes yet as it was just bought yesterday, would that be a reason why it's disconnecting or?