How to Change Data Networks on iPhone? IOS 7?

I have an iPhone 5S jail broken on 7.1.1. My carrier is T-Mobile. How can I switch networks from LTE to 4G or from 4G to 3G or from 3G to EDGE? I know there's this thing in the cellular settings that says Enable LTE but I don't want 4G or LTE. I want 3G or EDGE. If LTE isn't available, I connect to 4G. If 4G isn't available, I connect to Edge. Is there like an app where you can install from cydia or the AppStore that changes your data networks?

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How to upload a voice memo from iphone to YouTube?

If I convert it to mp3 will that work?

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How much will the iPhone 5S cost after release of iPhone 6?

How much will the iPhone 5S cost after release of iPhone 6?

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IPhone not recognizing new location?

I recently moved from one city to another. I haven't changed my phone number to the new area code (720 to a 719). Everytime I look something up on Google, or ask Siri a question, It gives me results in 720, but not 719. It is annoying to try finding new places to eat or shop when I am only getting 720 results.
Any way to teach my iPhone i am now in 719? My location settings are all on as well.

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Can I pre-order the iPhone 6?

So i have never bought an iPhone right when it comes out. I know people sometimes spend hours in line to get one the day they come out, but is there a way to pre order it? Like order it before its even in stores, and then have it mailed to me? Or just be able to pick it up at the store? How does that work?

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Why do people always HAVE to have the latest iPhone?

Why do people always HAVE to have the latest iPhone?

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On my iPhone 5 my album art work is wrong?

My music on my iPhone 5 the artist pictures are with the wrong songs what do I have to do to correct it

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Should I get the Nokia Lumia 1520 or the Iphone 5s?

These are the 2 im looking at getting I cant make up my mind. Does anyone have one of these phones and do they prefer a certain one?

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My iPhone is displaying a white screen with dark corners and lines down the middle. What is up?

My iPhone is displaying a white screen with dark corners and lines down the middle. What is up?

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Can the police help get my money?

I was offered to buy an IPhone 4s for 100$. When the girl who had it came to us, my girlfriend looked at the phone. It said insert SIM. The girl told her it just needed a SIM, it was unlocked, and nothing was wrong with it. Well, my boss came up to me and asked if I wanted to use his SIM to check it out after she had sold it to me and left the store. So I did, and it turns out the phone was still locked to another persons Apple ID and even with a SIM I can't access the phone. It's just trash practically. Then we found out (not 100% sure on this one though) it's an IPhone 4 not 4s. I'm really upset about this. This happened only a few hours ago and I pleaded in a nice way for a refund but eventually was ignored. I'm unsure what to do because I don't know that the cops would do anything about my money. We have multiple witnesses of the transaction and what she said and it is also on camera plain as day. Is there anyway to retrieve my money?

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