IMEI BLOCKED, any solutions?

So I had my iPhone 5C for about a month now and it was working fine until now. It's registered as an IMEI blocked phone and I'm not able to get it unblocked since the previous owner owned it. I went to my friends and they think this might be a solution to it. Get a carrier unlock with IMEI. I'm not sure what this meant when they said that since they're different approaches to it. If I were to unlock my phone with IMEI, would I be able to use it on T-Mobile again? Or would the phone still be junk? I'm aware of you not being able to unblock your IMEI unless it's unblocked by T-Mobile and T-Mobile only, but they won't let me. So what would happen if I were to get an IMEI Unlock on my phone? Would I be able to still use it on T-Mobile? Phone is an iPhone 5C.

Difference between IPhone 4 and the 4s?

Ok so I'm about to go buy an iPhone and I want to get the 4 because its 100$ cheaper than the 4s. Is the price difference worth it? Like could my carrier (which will be verizon) eventually stop supporting the 4 or something? And what are the major differences?

If i delete the flickr app from iphone, will the photos on the flickr app be deleted as well?

I uploaded flickr app to my iphone as an alternative to save my iphone photos as a backup. But the flickr app is taking too many space and i want to delete it, my question is if i delete the flickr app from iphone, will the photos i uploaded from my iphone gallery to flickr be deleted as well? Thank you so much.

Added (1). i downloaded not uploaded flickr. Sorry for the typo.

Why my iphone 5 battery dies so fast?

I did a full cycle charge, disabled background refresh apps, turned off location services, turn off motion effect, turn of Bluetooth and 3G. A nnd dies fast, I think inn gonna get. A 5s. Because the battery is. Better

IPhone 4s shocking even when unplugged?

IPone is 2 years old. I've noticed it give small shocks before I if used it while it was charging every now and then, but they would never hurt, just feel weird. I switched out my cord the other day because my old one was getting frayed and when I grabbed my phone to unplug it later the shock was worse than ever. I lost feeling in my finger for a while and when I went to pick up the phone off of the floor (it was unplugged at this point) it shocked me again through the case.

Is this normal at all?! I was already planning on getting a new one in a week and keeping my 4s as just an ipod but now I just want to toss the thing.

What is some good music to get off itunes?

I need some new music to listen to and I listen to it off of my Iphone and my Ipod. I listen to Owl City and I like songs like Radioactive, Safe and Sound by Capital Cities so I'd like songs like pop or electronica or new age to listen to. But I don't want it to have any cuss words or inappropriate stuff.

By the way I'm only 12 so yeah. I want it to not have any cuss words or inappropriate stuff but I don't want it to be some stupid song either.

How much is my iphone 5 worth? - 1

I bought it two years ago, it's in perfect condition, it comes with a slightly damaged life proof case, headphones, the charger cable, and the original box. I'm thinking around $350-$400

Added (1). Also it has 16GB of memory, it's locked to AT&T, And it's black.