IPhone 4 noises stopped working?

Please READ All DETAILS BEFORE ANSWERING.
So basically my phone is acting like there's headphones plugged into my phone. It won't play music. The little volume slider bar disappeard, apps won't make any noise, etc. I know it's nothing wrong with the speakers only because when I receive a call my ringtone still works fine. But on a side note, when I actually do plug in headphones all the noises and music comes backs. Thru the headphones of course. Also when I go to turn up the volume on the side of the phone using the buttons, the little ringer screen pops up but doesn't let the volume go up or down.

I have tried to hard reset the phone. I have gone into all the settings and made sure nothing was on mute. I have restarted the phone several time. Any suggestions? Is my headphone jack, jacked up?

If anyone has any good suggestion Please help me out!

Can I put a Rogers sim card in an American iPhone?

My dad bought me an iPhone because I haven't seen him in atleast 5 years, and he felt bad about that. And he stopped in America before he came to Canada and bought me one. I don't want to tell him I can't use it because I don't want to hurt him. So can I put a Rogers sim in it?

Should I purchase a unlocked or locked iPhone?

I'm getting the iPhone 4s soon (because I'm thinking that the iPhone 5 won't have many differences from the iPhone 4s) and I was wondering whether I should get a locked or unlocked iPhone. I was thinking that if I got a locked iPhone, purchasing the actual iPhone will be cheaper in relation to the unlocked one, but the plans will be more expensive as the plans will cover for the cheaper cost of the iPhone. BUT if I got an unlocked iPhone, then the actual phone will be more expensive ($649 + tax), but the plans will be much cheaper. (Up to more than half of the price, according to a friend).

I personally do not really trust the unlocking devices that you can get online because I'm afraid that it'll harm the phone so that isn't really an option.

So which one do y'all think? Should I get a locked or unlocked iPhone? All opinions are appreciated!

I slammed my iPhone against my table and it won't turn on? - 1

My phone froze earlier and it happens all the time since I jailbroke it and now its unresponsive. I tried plugging it into itunes and nothing appears. And I even tried resetting it but nothing happens. I have seen multiple topics on the same case here and they all say reset it but its not working all though it has for them. Any help?

Added (1). And please give me an answer guys I'm really worried. I want to know what to do, not to control my anger because I was on the phone with the manager at a store trying to get a job when this happened.

How to reset iphone 4s passcode?

I know i asked a question similar to this earlier, but i didn't get any answers that i wanted so i'm posting a better worded one.
i forgot my passcode and i really want to reset it. I tried plugging it into itunes and it tells me i need to enter my iphone's passcode before they could restore it. Can anyone please explain to me how to reset it?

How to transfer movies from iTunes to my iPhone?

It's not rented, It's actually the Hunger Games which I got for free because I got the code from the DVD case. It's in my iTunes, but when I go to my movies tab on my iPhone menu on iTunes, it says I have no movies. How do you transfer it? And when I do transfer it, where do I go on my iPhone to watch it?

It's already in iTunes but it just won't show up in the movies tab on my iPhone sync menu.

What to do if i forgot my iphone 4s passcode?

So i forgot my passcode, and i don't know what to do. I read that you could plug your phone into itunes and then reset it, but i really don't want to lose all my photos, text messages, contacts, etc. Is there a way to reset my password without losing all my iphone's data? Please answer quickly! Thank you so much!

Added (1). Btw, please don't suggest to go to the apple store/call verizon because i really don't want to do that, thanks.

Am I paranoid or could he be cheating on me?

My boyfriend and I have been dating for almost five months. We have been so happy together until recently. We have been arguing a lot more and it is almost always over something small or stupid. Today I went through his iPhone. I do it all the time and I always do it in front of him so he know. A lot of the time he takes my phone and goes through it also just for fun. Well, today when I went on his phone I went onto his myyearbook. I went straight to these messages that he had. Two said " Thank you. " from two different girls and then another was from a girl flirting with him and asking him to skpe her. The part that got me was that all of the messages that he sent to these three girls were deleted, so I have no idea why the two said thank you and I don't know if he started the flirting with the other girl and I don't know of he actually skped her. Then it became worse when I looked at his profile and it saw it was under a fake name and the profile picture wasn't even of him. It was a picture of a nice sports car that he doesn't even own. He is such a compassionate, and cute guy. I'm completely in love with him. I don't want him to be a liar and a cheat. Please help me. I need to know what to do and if he is a cheater and liar.