I CAN'T DELETE MY IPHONE MESSAGES?

I've been trying to delete my iphone messages to free up space so I deleted them by swiping them and it didn't work? I restarted my phone and everything.

What can I do on an iPhone without service?

If I get my hands on a new smartphone, I want to know what I can do without service. I can't afford it. I need someone to explain to me what an unactivated SIM card is, what limitations I have without internet, and Wi-Fi. First of all, with Wi-Fi, do you have to pay for it like service on cell phones where you have free service for a certain amount of time, or do you have to pay for monthly?

I don't care about calling, texting, Facebook, Instagram, whatever. It would be nice to have them, but I just want to be able to play games and apps.

How easy is it to transfer t-mobile account?

I had amazing Credit score and i basically messed it up the past year, as a result i know i will not pass the T-mobile credit score to get the iPhone 5s (Worth about £700).

So i'm convincing my mother to get it for me but i want to have total control of the account, i heard they allow Account transfers, do they allow it?

Data is all gone after 1 day?

I have a sprint iphone 5C & I guess I didn't qualify for the unlimited everything for $65 a month, so I have unlimited text & calls but I only have 1 GB of data a month & that's $70. I just paid my bill, and not even 2 days within my new cycle all of my data is used up?! I hardly ever go on my phone unless there's Wi-Fi, I usually listen to a couple songs on pandora in the morning with cellular network while driving to school. But like do I need to turn something off or what? Somebody please help me! My bill isn't due to the 26th & my data is all gone already! I previously had verizon & 2 GB of data but it was expensive, but I hardly ever went over 1 GB of data a month with verzion? Is it something with sprint?

Car speakers crackling when iPhone gets message or phone call?

Ok I have the iPhone 5s brand new, when I have the aux plugged in playing music anytime I have an incoming text message or call or if I'm sitting in the car and do anything regarding the internet my front left speaker goes nuts with this obnoxious loud crackling sound it's getting to be unbearable. I don't know if it's my speaker or my phone because when I have a cd playing there's no problem at all, has anyone else ever had this problem/ what did you do?

I need to restore my iphone 5?

My old one broke and i just got the new one in the mail. I already backed up my iphone and i did it again today just to get everything but when i go to restore my phone it asks for a password. I don't remember setting up a password to unlock my restore?
what does it mean and how do i find out what it is?