How to get 3G with Straight Talk using an AT&T iPhone 4?

I've unlocked the phone.
I've called Straight Talks so called customer service. They did absolutely nothing and told me to deal with the fact that I can barley get 2G (E) service. They said it was just the area I'm in. There has to be a way to get better service. I mean, it's running off AT&T towers and I used to have AT&T and the service was fine. I'm about to go back to Virgin Mobile and just not use an iPhone. It's just that I prefer this over anything Android has to offer.
Anything helps at this point

Can I jailbreak my Iphone 5 running on 6.1.3?

I had my iPhone jail broke before but than I restore it to get the latest update from apple… And I have tried to look on the internet for a iPhone 5 jailbreak for free but I haven't had any luck.

Why is there such little memory in electronics?

You would think by now there would be more than just a 16, 32 and 64gb option for most devices. Considering 64gb can fit into a small SD card why can't an iphone have a couple hundred gb of memory in it. Or an ipad as well. It doesn't make any sense.

My iPhone 5 been acting up lately?

My phone been acting up lately. I dropped it a few time and now the on/off button sometime don't work. I have to press it harder than before for it to shut down. And recently I plug my earphone and listen to music the song fast forward by itself sometime and there like a static noise when I plug my earphone in? What should I do? Is the problem is my phone or earphone?

My iPhone won't let me play this song in an album i purchased? - 1

I purchased an album last night & i listen to my favorite song on it yesterday & today. I have been trying to play this song for over an hour now and every time i click on it, it skips to the next song, no matter how I go about trying to play it. Of all the songs on the album this is the only song that doesn't play when i select it, how ever i was able to listen to it earlier today.

It it necessary to back up your iPhone after an update?

My iphone has been under iOS 4 for a long time and I finally plugged it into my computer to update it to. It's latest version. After the update, it started backing up my iphone and its been over three hours and hardly anything has been backed up. I was just wondering if it was completely necessary to back up your iPhone after an update. I don't want any of my pictures or texts deleted, but I don't want to spend hours waiting for this to back up, at least until I can delete some old apps to speed up the process.

Can iTunes save my data on my iphone?

I'm getting a new iphone because i have touch screen problems. Can iTunes save my data so when i get my new iphone, i can simply retore my info?

Added (1). If so, how?