i was looking on the T mobile coverage map and it says " Very good" that i should be getting 3G. but i am always stuck on edge. any help how to get 3G
You need a new iPhone that supports T-Mobiles AWS spectrum.
You'll only pick up "4G" if you're in their refarmed 1900MHz spectrum, I believe they use 1700/2100MHz as their main spectrum, which isn't supported by old iPhones.
You'll have to get the T-Mobile iPhone, sorry.
I do get 3G like outside my house area but around my house i dont. So im pretty confident i could het 3G