How much will it cost to activate an iPhone 4S To sprint?

So i have an iphone 4S that my sister gave me for my birthday. I had it carrier unlocked when it was in ios 6.1.3 For i can use T-Mobile for 60 dollars. I made a mistake by updating my phone to iOS which i wasn't supposed and i lost my carrier unlock. So now my sim card won't work. Since my iPhone is orginally locked with sprint, i decided i want to switch to sprint and pay 80$ a month for unlimited data/calling/texting etc. I heard sprint doesn't use sim cards. So i'm wondering how do they activate the phone? Can they activate the phone? If so how? And how much will it cost to activate it?

I don't use an Apple computer but want to sync photos FROM iphone TO computer?

Hi so I have full memory on my iphone so I want to first copy all my photos into my computer pictures file and then delete ones I don't need on my phone to create some space.

I have a really dodgy cable so when I plug it in it sometimes takes a few goes for my computer to realise my phone is there, but when it does it doesn't bring up the whole "browse photos" folder thingy to come up - if it did I could simply transfer all the files into one big one on my computer no problem

I have an Iphone 3gs which has icloud up and running (not that I really know how to use it) but because I've not got an apple pc does that mean I can't use it? I have iTunes on this computer which mentions icloud but whenever I go to sync photos on there it's only from computer to iphone when I want it the other way round.

Any help!

How to resync my iPhone to a different Mac laptop?

I recently purchased a used Mac from a friend and it has her iTunes still up. I hooked up my iPhone to the laptop to sync my phone to iTunes. However, the two didn't sync up. I want to clear out her old music with the music from my iPhone. Is this possible? And could you instruct me on the steps to syncing my phone to the Mac/iTunes?

My iphone 4 won't allow me to send picture messages?

I've had my iphone 4 for about 6 months and it worked fine up until a few months ago. Everytime I try to send a picture message, it says "sending" for about 30 seconds and then it'll say "Not delivered." I can receive pictures from people. Just not send any. And I have plenty of storage on my phone so i know thats not the problem. My phone hasn't been damaged at all so i don't see what the problem could be. And its just an iphone 4 not a 4s.

Added (1). And my MMS is turned on

Should I be suspended for recording a fight in school?

Today there was a fight in my History class. I recorded it on my iPhone. I showed it to a couple of people and then word spread that I had it on my phone and I was called down to the office so that they could look at it. They kept my phone for the rest of the day. I didn't send it to any of my friends nor did I have any involvement in the fight besides recording it.

My principal suspended me for 2 DAYS OUT OF SCHOOL. I think this is very unfair. The reasons she wrote were "Wireless communication device / Any act which disrupts the educational process"

I don't understand what I did that is so wrong here. I recorded a fight, I know that, so I'm willing to be punished for having my phone out in class but 2 days of an out of school suspension! I think that is completely blown out of the water. The most I should get is a couple of days of in school suspension in my opinion.

My question is: Can i fight this? I don't want this on my permanent record because I want to get into a really good college. I'm a mostly straight A's student, this is my first time actually ever being in trouble in the office. I'm scared for my future.
My question is: can i fight this?

Apple, what's with the huge prices?

Recently, I've been going through electronics as there's a sale going on. I noticed how Apple iPhones are unrealistically expensive. Also, beats by Dr. Dre, they sell them for $325 each! Is it just because of the name on it or is it actually worth all the bucks?

Can I use sprint iphone for with the contract up as a sprint prepaid?

My IPhone 4 that I have with sprint is currently up to renewing my contract but instead of getting locked into a 2year.contract can I use the same phone as a prepaid sprint phone. I wasn't sure because I had heard no, that you had to buy the iPhone for a prepaid plan but I have also heard since its the same carrier I should have no problems using it as a prepaid phone.