Sprint locked my iphone can I jailbreak it?

Sprint d/c my iphone b.c bill was too high & couldn't afford it. I called in to cancel services they said on the 20th. However, customer rep told me that I wasn't able to use my iphone (locking it) & wasn't able to activate the phone, and I'm wondering if I unlock my iphone will I still be able to use my iphone since I haven't paid my bill with sprint?
I'm new at this so I have no clue.

Added (1). Now what if I pay the outstanding bill can I still jailbreak it? Eventhough if I have a contract with Sprint?

Does Squaretrade Warranty cover full price? - 2

For example if I were to buy an iPhone 5 and I accidentally broke it to the point where you can't fix it, will they just ship you a brand new iPhone 5 or send you money of the retail price of the phone? I have the ADH warranty.

Dragon Story Update on iPhone?

I got the update where you can get the light dragon, but I'm thoroughly confused as to why it would be a whole other app. My question is, do I delete the original Dragon Story off my phone? I noticed that when I do stuff on the update, it carries onto the original. At least, some of it does. It won't delete my whole park if I delete the original, right?

Do not disturb is not working in IOS6?

I installed the new iOS 6 for my 4S iphone, the new feature DND is not working at all, I tried to lock the phone and put NO one for allowing calls it's still ringing

There's any way I can make it work?

Can't change Facebook profile picture from the iPhone app?

I can't change my Facebook profile picture from the iPhone app. I have the iPhone 4 but I have not downloaded IOS 6 yet. I can't change my profile picture. When I click on a picture, all it shows are options to like, comment or tag and that's it.anyone know what's wrong?

Recording iPhone game, Can't sync video to audio?

Hello I'm recording my iphone 4s screen with display recorded, there's no lag at all. I'm also using an aux jack to my computer to record the sound through audacity. I'm using Pinnacle HD Studio 15 for my video editing. The problem is i can't get the audio to sync to the video. Every time i play the preview the audio is quite far behind the video, Even though i'm pressing record on my iphone and comp at the same time.

What can I do to restore my Unlocked & Jailbroken iPhone 3g?

I recently got the phone. I tried to erase everything on the phone while it was near death, and I think it died while doing so. It then went into recovery mode. I tried to put it into iTunes to restore it, but that keeps failing too. The phone has a custom firmware, and I have no idea where or how to get the firmware to properly restore the phone to. Any ideas?