How to unlock a US verizon iphone 4s to use inside the US on a prepaid phone plan?

Like virgin mobile 35$/month plan ( unlimited text and web with 300 call minutes ) . Like can I use a different SIM ( Not from the US with the same data plan like virgin mobile ) and still use it in the US? Or any unlock in general? ( my friend gave me his iphone but i think he stole it cause he said not to activate it on verizon which is why i want to get it unlocked )

please get back to me As soon as possible thank you c

Black iPhone 4s 16GB from Verizon?

Is new with the box, charger (but no earphones) it has a minor scratch that you can barely see. For how much could i sell it? I was thinking $300-$350 because I want to get the iPhone 5s.
Help. Thanks. If you have any recommendations email me - brianburgos4@gmail, com

Iphone Apple logo keeps flashing on & off?

I have a jailbroken Iphone 3gs. I did the update & from then on, my phone won't turn on. The logo will flash on for 10 seconds and then go off again. It has been doing this nonstop for the past 2 days. I've tried the holding the home and sleep button method and I've put it in recovery mode and it didn't work. I connected it to iTunes and tried restoring it, but with about 30 minutes left of the upgrade/restoration, the apple logo kicked in again. Nothing seems to be working, please help!

How to get my deleted songs back on my iPhone?

I deleted some songs from my iTunes library on my computer, but now I want them on my iPhone again. I went to the 'purchased' area in iTunes where I'm supposed to be able to download them again, but they aren't there. I found the albums in the iTunes store, and instead of saying the price, it says 'purchased' next to them, but there's no option to download. I'm at a loss, so please help!

How to tell if a message was read on iPhone with the read receipts off?

On an iPhone you have the option to let viewers see if you have read their message or not. Say I I want to know if somebody with another iPhone read my text but they had their read receipts off. How can I get past that and see if that person read the message? Is there am app for it?

How many songs should an 16gb iPhone hold?

With all the preset apps, there's 13.3gb total and I have barely anything except 830 songs and my phone is almost filled up. I also don't purchase my music per iTunes, I don't know if that makes a difference or not.