How to get iphone from working again from water?

So today my iphone dropped (with my case on). And got water on it. At the back ( its cracked from months ago)… Now it doesn't charge, neither does the volume work and i don't have warranty. Right now my phone is sittin in rice. What else can i do. What if it doesn't work tomorrow. I'm not gonna have a phone

How to use unlocked SIM-card free iPhone 5s?

So if I buy an iPhone 5s that is unlocked and SIM-card free in the US, can I use it in New Zealand and China by using a nano-SIM card from a local GSM carrier in one of those countries? Will it be able to work properly and make calls?

How to switch iphones

Okay so me and my mom both iphone 4. She has the white one and i have the black one. We want to swap phones but i'm not sure how to go about doing this or if its even possible. Please let me know.

I can't charge or sync my iphone 5?

I need some urgent help here, you see I have this Iphone 5 (I haven't updated to IOS 7 yet, so I'm stuck with 6) And when I charge it the thunder bolt sign does not appear on the battery image on the top. It also doesn't really charge at all, when I leave it for a full hour it only charges to 3% or stays at 0%. I tried changing my charger, cable but they're all fine. Also most of the time I play while its charging so I think it might be the batteries problem but i'm not sure.
I'm kind of certain that's why it won't sync either, it has only happened since yesterday and it's starting to get on my nerves because its always at 1% and dies any minute. If you have any idea of what's going then please tell me! :/ I'm sending my Iphone to get it fixed but I really want to fix it myself since it would be better.

My iphone apps update with the wrong email?

Okay. I udated my cousin iphone on my itunes and now anytime i want to update one of my apps his email comes up. I'm logged in to my apple account on my laptop in Itunes and i have all my own apps but like i said his email comes up anytime i want to update my apps and as far as storage its saying i have a lot of apps but i only have 23 apps and the storage is always saying (FULL) how can i stop this and how can I get back to my account on my phone? I'm also logged on to my account on my phone but it shows my shaquelle email but as I said when I want to update my apps his email pops up and tells me to enter the password for it.

My iphone 4s' battery is dropping quickly?

I've had my phone for over a year (I believe), and today all of a sudden my battery is dropping quickly. It will drop 20% all of a sudden without me doing anything. Nothing is open and all that junk so I know it's not that- any help?

Keeping in contact with other people in different parts of a cruise ship?

I'm going on a cruise with my family along with another family, i'm wondering if there are ways we could keep in touch while in separate parts of the ship… Just to say like meet me in 10mins here or something. I've sort of thought of a couple of ideas but haven't been able to find soloutions yet…

We all have apple products (either iphones or ipods) so if there was some kind of app we could download to msg eachother without internet or simcard?

Along the same lines… Maybe a dashboard\messageboard which is just one account that we can all sign into and post things onto so that it comes up on everyones phone (cause were all on the same account) does that make sense?

Any suggestions are greatly appreciated, and yes i have already considered walkie talkies but itd be weird if it went off in the middle of talking to someone haha

Please, let me know.