I dropped my iPhone in water! - 2

HELPME!

So, I dropped my iPhone in water and it was fully submerged for like a second or two. I took it out, dried it off and it turned on, but the touch screen won't work and I'm really scared. I turned it off and kept it in the charger but I need reassurance! Please

How to avoid having an iphone swelling battery?

I'm planning on buying an iPhone 4s but I kept seeing people saying that iPhone recently have problems with their batteries, such as a swelling battery and might cause an explosion
SO I want to ask how do I avoid having a swelling iPhone 4s battery?

Custom ringtones on an iPhone 5 without iTunes?

I have an iPhone 5, but my computer is so old that I can't run the latest version of iTunes on it. This means I can't sync my iPhone to my computer at all.

I have a sound clip on my computer I want to make into a ringtone. It's already an m4r; I just need a way to transfer it to my phone without connecting my phone to my computer. Is there any way to do this without jailbreaking?

How to update my jailbroken iPhone?

When I download games or other applications on Apps Store, some of it said that it requires iOS 5 or iOS 4.something… So i asked my classmate about it, he said that i can't update my iPhone anymore because it's Jailbroken. Is it true? If not, then how can i update it? Btw, please make your answer be more specific because i don't know much about iPhone… Thanks in advance!

Fitbit One vs Up by Jawbone?

I'm considering buying either the FitBit One (or Flex when it releases) or Up by Jawbone. I was wondering if I could get some opinions about both to help make my decision. The only problem with Up, as far as I can tell, is that I do not have an iPhone, but I do have an iPod touch. Does Up require internet to use the wristband?

IPhone 4 on Verizon with no SIM card tray?

My friend gave me her iPhone 4 and it still has service, I want to take the service off but I don't know how without them thinking I stole the phone? I heard about the iPhone 4 having a sim try on the right side or the top but this iPhone has no sim tray? What do I do! I've been trying to figure out if there's a SIM card in the inside of the back of the phone is there? And I really need help on this people keep texting her phone and she moved so I can't contact her in anyway?