How to change the Apple ID assigned to shazam app?

I'm trying to update my shazam app, but when I try, it asks for my parents old Apple ID password. I'm wondering how I can change it to be assigned to my current Apple ID, and ask for my password rather than theirs. How do I do that on my iPhone 4?

My iPhone 5 charger burned me?

I was laying in bed and felt a burning sensation at the bottom of my back, it was very sudden and very hot. I immediately checked my back and there was a black blister and my iPhone charger was also black on one side, I assume it is my burnt skin. I wasn't laying there for long as I had taken my phone off the charger to use it.

Does anyone have any advice on what I should do about it? The charger, not the burn

How to sync fitbit to iphone 4s?

I just got the new fitbit. I'm trying to sync it through Bluetooth but for some reason the Bluetooth is not recognizing the fitbit. Is there an effective way to making it sync.

Iphone 5-5s waterproof? Really confused?

Ok hey so i'm super confused. I have always belived that as soon as your iphone meets water its done? I was with me friend hot tubbig and he dropped is iphone 4 in the water. It was done. Wount turn on.

But i just got done watching at least 10 videos on the iphone 5, 5s "no case default bare iphone" turned on being held underwater for around 10 seconds. After they pulled them out it seemed as if nothing even happened. They were full functinal no bag or rice. WHAT?! Are the new iphones "water resistent"? I understand there not fully water proof but did apple add this major feature that i some how missed?!

Bought a locked iphone 5s. Can I trade it?

I was mugged and beaten a week ago. The theifs took my iphone 4s. I have no insurance for it. My uncle got me an iphone 5s that he bought on Craigslist. It starts off like a new product, but asks for the original apple id. The previous owner got it from his mother, who doesn't know the id. Can I trade it at Apple or AT&T for a new one? Or trade it to lower the price of a new phone? I need a new phone. PS: We bought the phone, we have the receipt and everything. I don't wanna switch the motherboard, it's too expensive

What uses data on an iPhone? - 2

I understand that certain things on an iPhone use internet data, such as Facebook, Snapchat, email etc. But I'm a bit in the dark about when those things don't use data. Do they use any data when closed? Minimised? Or how about if I have, for instance my email or snapchat open but am not sending or receiving anything, does that use data then? I just want to be clear so I don't go over my data limit.