I've been with Boost for the last 6 years after trying at&t, us cellular, straight talk/verizon, and virgin mobile. I'm in a rural area and due to my specific location I'm in a dead zone when it comes to at&t and straight talk/verizon, when it comes to internet. After 6 years of great service with boost/Sprint, suddenly the last 3 months I'm having problems with signal strength and speedier internet as well as calling.I don't understand why! I'm not sure what to do and am on a tight budget as I am disabled and on a fixed income. I've been advised to go with an unlocked phone so I can try different carriers but unlocked phones are more expensive. Help please!