Does 4G LTE use more data than 3G?

So here's the story.
I have recently upgraded my phone from iPhone 4 to a Motorola RAZRRm while doing so, I lost my unlimited data.
When I used my iPhone I ran on 3G network which always seemed to work great.
Now that I have upgraded my phone I'm on Verizons 4G LTE network but seem to go through my data unbelievably fast. Now I have 2GB of data.
I have talked to tech support several time only for them to say they see nothing wrong with my phone.
And while poking around different things in my phone I came across the ability to change the network settings on my phone (global, LTE, 3G).
So I have two questions:
1. Does 4G LTE use more data than 3G and
2. Will changing my phone to 3G ruin anything?

IPhone Restoration Problems?

I tried to update my iPhone but it forced me to restore first. So I didn't want to lose anything, and I had backed it up on iTunes recently. Now I tried to set it up and everything and it said 'Could Not Activate iPhone' I wanted to get all my stuff back and now nothing is working. Also, before this I couldn't sync anything to my iPhone from my computer. I tried but it froze at step 2 of 5. Can someone please help? It says No Service. What else did I lose besides my photos and contacts and stuff, will I be able to get them back? Did I lose my service? Please help. I'm very stressed out and getting frustrated! I have an iPhone 3gs. All I want is to be able to use my phone just like before I restored it. I didn't even want to restore it in the first place.

Added (1). How would I restore everything from back-up, will I have all my apps?

How to edit photos on Iphone?

Lets say I want to combine body parts of an animal or something like that. Like photo shop. Not crop this image or add filter just photoshop

How to make iPhone 5 battery last longer?

I'm going on an 18 hour school trip to an amusement park on Saturday and I want to make my iPhone 5 battery last as long as possible.
Just to give you an idea of what my planned phone usage will be: about 2 hours on the way (mostly music), emergency use only at the park (as in to contact adults if needed) about an hour and a half on the way back (Mostly music) and I need to be able to call my parents when we get back.

I know it doesn't seem like a lot but for some reason my battery drains very quickly. I was going to let my phone completely die out the night before and charge it overnight. Any other tips?

What camera would work better?

I go to concerts often(small venues so far) and take quite a lot of photos of basically anything that's pretty interesting but I don't have a good quality camera and using I can't use an iphone because I don't have one I usually end up taking on that isn't mine to snap a quick photo. I've also been wanting to get into photography for quite some time for future purposes for family and friend meet ups.
I've been on craigslist for a camera due to lower price then in store. I've found a d3000 Nikon Camera, Sony a230 DSLR, Canon EOS Rebek S II and a Canon EOS 20D.
If anyone could suggest one that is better then the ones listed. Possibly under $400 if possible.

Is there a jailbreak for iOS 6.1.3? - 1

People say that there has not been a jailbreak for 6.1.3 but my friend has a jailbroken iPod with the update 6.1.3 how's that possible? I want it on my iPhone 4s. Is iphones different from iPods?

If I restore my iPhone will it loose everything if it does can I get it back?

ITunes is making me restore my iPhone but I don't want to loose my things such as photos, texts, apps and stuff like that. I backed it up 2 hours ago, will I be able to have everything back to normal? I tried to update it but an error occurred so it's asking me to restore. I kinda don't want to, I'm fine with not updating it but now it's not letting me do anything but re-store and I don't want to loose anything or re-download anything like apps. Could I somehow pull up the back up and have everything back to normal? How could I use the back-up though.

How to disable the find my iphone app on an iphone 5 that i found?

I found an iphone 5 and I noticed that it didn't have a lock on it. I turned it off only to later realize that the phone was locked with a password and the only other option was to call a number. I want to know if there's any way to unlock the phone or delete the app.

Why is my iPhone not connecting my Wi-Fi?

I just recently moved into a new house. And I soon realized that their was Wi-Fi in my house titled "dlink"
I've seen this public Wi-Fi before at an old house of mine.
Well anyways. It's been working fine for a a couple weeks now. But today around 12 I came home and my phone wouldn't connect to the Wi-Fi.
It just does that little loading sign, and it doesn't stop. It just keeps going, can anyone help?