Can I unlock my sprint iPhone to used another service?

Ok so I was using sprit but we switch to simple mobile. So I'm using my sprint iPhone as an iPod. I want to give the phone to someone so they can used it as an iPhone because I have a new phone. But the weird thing is if someone sent iMessage, I can get it on both phones; my new phone(it has android operating system) and the iPhone and i don't want the person to see my messages. And did I mention I was using my number for sprint but I switch it to simple mobile. With that being said, my question is, will unlocking it works? If not what should I do? Oh another thing, I want to buy another iPhone so the person and myself can iMessage and video call, but I'm afraid that won't works cuz it will be like calling myself. So what should i do?

If you track your stolen iphone will the police retrieve it for you?

My iphone was stolen last night its yet to be turned on but using the find my iphone app i should be able to find the address, the problem is that the whoever took it is not going to willingly give it back, and the people i have an idea of who took it are quite intimidating, thank you.

Iphone 4S vs Nexus 4 vs HTC wp8x?

Should I get the iPhone 4s 16 gigs, Nexus 4 16 gigs or HTC windows phone 8x 16 gigs?
The HTC is the cheapest, then the Nexus and then the iPhone.
I'm gonna use it mainly for Music, Messeging, social apps, web browsing, youtube, Any. Do and ect… No real need for costumization or Roms.
I had 3 Android devices and only the galaxy nexus was a decent device, the Atrix ant the xperia U suck.
WP8 looks very appealing, and iOs is known for its app base, eco-system and snappiness.
What would be the best choice?
Take build quality and feel in consideration.

How to send pictures on iphone 4 through bluetooth?

Well, to sum everything up, i don't know much about iphones. My friend wants me to send her some pictures from last day of school from my iphone to hers. But first i have tosend it to my tab then send on whatsapp. But the thing is, i don't know how to use bluetooth on the iphone and the manual is in japanese. Please help! I'm so confused and i've been searching on how to use it for an hour now.

Is there away to restart and iPhone without having to restore it?

I got the iOS 7 beta and sometimes it's buggy so I was wondering. Is there a way to just reboot it if it becomes unresponsive instead of putting it into DFU mode. Like say the screen becomes black and neither the home nor power button are responsive. Can I just reboot it instead of using recovery mode. Just wondering cause I'm going on vacation and I don't want a frozen phone in DFU mode with no laptop to restore it.

Can I use a suction cup to replace my iphone 4 screen?

Well I hear you can, I honestly just don't want do all the screwing and stuff because I might mess up something. But please give me some good news and I'm talking about the little suction cup that comes with the tools with the ring on it…

IPhone is disabled connect to iTunes?

So I changed the code on my phone because my friend was writing stuff to people and faceraping me… Then I went to take a shower and when I got out, she had disabled my phone. She kept on doing this throughout the day, then (after hours of waiting), I accidentally typed in my old code while trying to unlock it. So I waited an hour, then, without thinking, I typed in my old code again. On the screen, it said "iPhone is disabled, connect to iTunes". I have the worst laptop IN THE WORLD, and iTunes doesn't want to open. I deleted it and I'm trying to download it again, but it doesn't work. I tried putting my phone into recovery mode, but I need iTunes for that too. Plus, I haven't backed my phone up. Is there any way I can get my phone to work without restoring it and losing everything?