Anyone else having iphone 5 issues?

Ok so I got the iphone 5 from sprint like 4 days ago and where I live I barely ever get 4g LTE service or whatever its called… Which is fine cuz my iphone 4 didn't and it worked just fine. But the only way my facebook app will work is if i'm connected to Wi-Fi and it still hardly will update. I've deleted the app over and over and reset my phone and everything. I also can't send picture messages! Every time I go send one it says message fail. It will randomly let me send one here and there but 9 out of 10 times it won't sent. Its just so annoying, I was just wondering if anyone else was having this issue before i call sprint customer service and yell at them, lol.thanks!

Added (1). -- also tho my service is good i have all full bars and its in 3g… I don't really care that i can't get the 4g cuz thats my own fault where i live but that shouldnt make the whole phone suck lol

The iPhone 4 and 4S can't get 4G, period.

If you are constantly acquiring and losing 4G signal, this can interrupt your network traffic. Check your settings for the option to turn off 4G/LTE until it is more stable- you'll have a smoother connection and won't drain your battery as quickly, either.

This is your connection, not the phone. If its not 4g then its because there isn't a signal where you are at. If a message fails its because there's a bad signal where you are at, etc.