Change 3G to LTE on iPhone 5?

I usually have LTE on my iPhone 5 when I'm out of Wi-Fi but lately it's been changing to 3G and it annoys me because it goes slower. Is there any way to have it go to LTE not 3G?

How to watch live sports on my iPhone?

Is there a way where I can watch like sky sports in my iPhone by streaming for free. Most of all I want to watch sky sports news because of transfer deadline is there a free way?

Iphone 4 to GS4 imessage issue?

I just changed my phone from a iphone 4 to a Galaxy s4. When people who have an Iphone txt me, it keeps sending the message as an imessage, like if their device did not recognized that I didn't had an iphone anymore. It's annoying because they have to manually send the message as txt message so it can be delivered to me. Any clue to how to fix my problem?

I dropped my iPhone 4 and now it says there's no sim installed?

I dropped my phone this morning on the tiles, as soon as I picked it up it said there was no SIM card installed? Even though the SIM card was still in there. It had a case on it and everything so I don't know what's wrong with it. I've taken the SIM card out and put it back in a few times and turned the phone on and off, but nothing works.

Could you maybe tell me what's wrong with it? Is there a simple way to get it working again? Or will I need to pay to get it fixed at the phone shop?

Will my iPhone sim work in another iPhone?

I have an 8gb iPhone 4 on Vodafone and my cousin's boyfriend is selling a 16gb 4s. I still have a year of my contract left (as carphone warehouse put it, it's my 'phoniversary' today in fact) and really want a 16gb as I'm constantly having to delete photos/music on my current phone, if the new phone is still on Vodafone can I put my sim into his phone and use it for the second year of my contract? I'm desperate for the extra 8gb and really don't want to wait another 10-12months for an upgrade, so will this work?