I can't go on the internet without Wi-Fi on my iPhone 4?

I've tried everything like trying to reset it but I can't log out of my iCloud account because it's asking for my old password and I tried the glitches and I turned cellular data off and turned off my phone and then turned it back on and turned cellular data on again and it still wouldn't work!

Kenwood car radio- USB N/A device?

I bought a kenwood radio for my car that says it supports USB through iPod and iPhone, but when I plug anything in it says 'n/a device'. Some of my friends ones work but mine doesn't -.- very annoying please help me on this on how to fix it

Can my work tell how much bandwidth my iphone uses?

I've been streaming netflix and podcasts from apps on my phone for something to listen to at work. Out internet provider said out internet is slow and we need to pay for more bandwidth. I'm afraid this is of my doing. Quite a few of us stream radio from our computer or smartphones. I just play netflix and listen to it from my phone. I don't have a way to listen to it with just sound. Our IT guy is coming in to figure out the cause of our internet slowness. But the internet is slow even when my phone is off. Can they trace it back to my cell even though it's coming from my apps? Do they need to have a tracker for that or can the IT guy figure it out Needless to say I will no longer be listening to stuff at work.

Switching from Verizon to Straight Talk?

I currently have a contract with Verizon Wireless until February. My account is currently suspended, but I was curious to know if there's any way that I can use straight talk or another service provider until I can afford to have my service with Verizon cut back on? I have an iPhone 4S.

Can I use a Sprint iPhone with Verizon?

My friend wants to sell me his iPhone 5, but his carrier is Sprint. I'm on Verizon.

Is there any way to change carriers on the iPhone 5 from sprint to verizon?

Who is responsible for buying Insurance on an Ebay item?

I bought a 500 dollar Iphone on Ebay and it was lost in the mail. I've gone to the post office about it because it was their fault, but they will only pay 50 dollars for a 500 dollar mistake because there was not insurance bought on the package. Is it up to the buyer to buy insurance on a package, or the seller?