Did i or didn't i unlock my iphone 4?

I had a question i followed these steps to unlock my phone http://www.ijailbreak.com/how-to/unlock-iphone-4-3gs-ios-5-1-1-ultrasn0w-1-2-7/ i did everything step by step. How can i find out if its unlocked? So i can use any carrier

Can i trade in my iPhone 4 for credit?

Ok, I Have a Verizon iPhone 4. I'm with sprint, and i love them! Probably only because the Truely Unlimited Plan. But they want to charge me around $300 to cancel my contract. Now from the searches i've done looking on how to simply ask Apple a question, without it being one of the topics they've selected, you can't. You can call but only with warranty. So i thought i would ask you guys! So i'm with sprint, and i have a verizon iPhone. Can i trade it in with Sprint for Credit? I doubt it, but worth asking. Next one: Can i Trade it in with Apple for store credit, I can just pay the differences after a trade in if Apple does that. Anybody know? Thanks!

Added (1). Wow. Why did i not think about that! Hmm. No if i wanted to sell over ebay, i would have. I want a iPhone for sprint. Don't want money for selling mine. Your horrible.

Added (2). Wow. Why did i not think about that! Hmm. No if i wanted to sell over ebay, i would have. I want a iPhone for sprint. Don't want money for selling mine. Your horrible.

Do the iphone 4 and 4s have different chargers?

I have the iphone 4s and my older brother has the iphone 4. I can charge mine fine but when I put his phone on my iphone charger it didn't work. He used to use my older sister's charger because they both had the 4 but she went to college and now he wanted to use mine but even when I tried taking off the case, unplugging it and plugging it back in, and different outlets nothing worked but when I put my phone in it was fine. I also can use the ipad and ipod touch on my charger. Would that mean it's a different charger?

My safari froze on my iPhone?

So, it's frozen.
I can't do anything, like it's frozen. I can't open a new tab. I can't write anything.
Please help me

Added (1). @Beautiful: I can't, it takes a picture. I don't know if I'm doing it right lol (still frozen)

Added (2). @Zuko: It says to turn power off after 10 seconds or cancel what do I press? (And no Apple logo showed up)

Added (3). @Zuko: Nevermind it worked thanks so much

Verizon iphone service problems

I have had an iphone 4 for about a year and a half about 2 months ago i had to get a replacement because the buttons werent working. But lately for about the last 2weeks my internet service hasn't been working without Wi-Fi. I have Wi-Fi at home so it works fine but the minute i leave my house it say i have no internet service when i know i do.could there be any reason it wouldn't be working like a setting or something? Plus i'm paying for the internet service!

Itunes won't transfer music to iphone?

I just bought a brand new computer
i copied all my songs from my old computer to my new one
but now whenever i want to copy more songs to my iphone, it won't let me
i have authorized this new computer and i have put in my itunes account in
what else do i have to do to get it to work?

Can i get Siruis Xm on my iPhone?

I'm subscribed to siruis xm for 1 year I'm wondering if I can get it on my iPhone or do I have to pay extra to get it on my iPhone

Iphone 3gs camera Shutter Won't Open?

The shutter animation stays closed for camera and video recording. I also searched online and some people say that the camera is disconnected and or it needs to be replaced. But i know its not that because i have an app called camera plus witch takes photos fine. One other person mention something about jailborken mods which could interfere.