My iPhone 4S lock button won't work?

I'm really really worried. I just got my iPhone 4S for Christmas, and today I noticed it would take a minute for the lock button to work. I haven't dropped it and i have an otter box that never comes off. (I've tried to click without the otter box on and nada) I don't think I have insurance of my phone. (Not sure.) is there anything I can do? It's only 8 months old!

Why are used iPhone 4 phones so expensive on eBay?

I'm thinking of upgrading my Verizon iPhone 4 to an iPhone 5. Thinking that I might be able to get a little something for my 2 year old phone, I checked prices on eBay. I was shocked to see that I could get more than just a little for my phone. It looks as if I could cover the cost of the new iPhone 5, including the upgrade fee through Verizon.

So what's the deal? Am I missing something? Why are these seemingly "old" phones fetching such a good chunk of change? Why do people want to pay a couple of hundred dollars for these phones? Am I right in saying that it is better financially to sell on eBay versus trading in the phone?

And what information do I have to provide I have to provide to sell on eBay? My phone is in great condition with no water damage or scratches. How do I list it to achieve a maximum return? Also, how am I assured that my information gets transferred to the new phone and is completely erased from my old phone?

Where can I find 'notes' from iphone?

My notes on my iphone have disappeared. The Verizon people told me yahoo deleted them off my phone and that I should find them at yahoo.com but I can't find my notes.

Can I upgrade an unlocked iphone 4s T- Mobile to iOS 7?

So i decided I want to upgrade to iOS 7 but the beta version and I want to know if I can do it. My iPhone was originally locked with Sprint but They unlocked it so i can have any carrier I want and I have T-Mobile. They said you need to see the model of the phone such as there's one for sprint & verizon & another one for At&t & T Mobile. The only think i'm concerned about is the model because the phone is originally from sprint.

If I sync my iphone to a new computer, will I lose all my data?

So I have an Iphone 4 synced to my old laptop. I got a new laptop, and I moved all of my music and pictures and whatnot there. I transferred the purchases, and I backed up the Iphone to the new computer. Can I sync without losing my data? I'm just really worried because I have a lot of RPGs and otome games and a manga reading app, and I really don't want to lose my saves or in-app purchases or favorites or anything else.

My iPhone is locked what do I do?

My friends iPhone is locked in lock screen. And the slider to unlock it says " slide for emergency " and if I slide it a keypad appears for an emergency call. And the background is a picture of a charger and the iTunes symbol so what can I do to unlock it. By the way it's black and it looks like an older version, curved bottom very thick, heavy iPhone.