How to improve data quality on the Sprint iPhone 4S?

I live in northern New Jersey (973 Area Code), and my 3G on sprint iphone is insanely slow! For example, I used to be able to load instagram perfectly, but now all of the photos load low resolution and pixelated. Is there any way to fix this?

What is a fair price for a broken iPhone 4s?

I broke my iphone lastnight dropping it on the floor. I do not know what the problem is but i do not want to fix it. I believe that the lcd broke on the phone. How much do you think i should sell it for?

What is wrong with the Wi-Fi and my iPhone?

My iPhone used to get Wi-Fi in my room. Now I only get Wi-Fi in the rooms next to the Wi-Fi and in the room with the Wi-Fi router. Now when I'm in my room the Wi-Fi symbol shows up in the top left corner and it shows 1-2 bars. But when I try to use the Internet it doesn't work and eventually switches to 3G. So what is wrong and what can I do.
The Wi-Fi works with the ipad and all other devices when in my room

My iphone can't compose emails?

For some reason I can't compose emails on my iphone 4.It says "sending the message content to the server failed". However, I'm able to still receive emails and look at them on my phone. My phone is not jailbroken.

IPhone apps to do your tax refund?

Basically my question is are there any iPhone apps that you can do your refund on? I've seen a few that give you an estimate but you can't actually file them. It's my first time doing it and I don't have a computer

Does tmobile charge for iMessage on unlocked iphone 4?

I have an unlocked iPhone 4 for tmobile and I do not have a data/Internet plan. I recently updates my iPhone and it turned on iMessage and I said my company may charge me. But I don't understand why it would? I have picture messages and unlimited texting but it won't let me send pictures? Can anyone help me?

Jailbreak ios 6.1 iphone 4s?

So i updated to ios 6.1 over the air. I was planning on jailbreaking my iphone 4s when i can. I just learned that you are are supposed to update through itunes. I also learned that you can restore your iphone then update it but i really don't want to do that because i don't want it to erase everything even though i backed it up. I was wandering if i wait a while after it releases and see if anyone who has updated OTA has had any problems and then update mine. Sorry its confusing. The bottom line is, can i jailbreak safely without having my iphone restored.

How to set siri back to english?

Ok so my mom has and iphone 4s and she messed it up somehow cause siri is now talking in spanish or italian i don't know and she is all weirdly messed up can someone help me fix it back to english