My dad gave me an android phone but it always says card not plugged in or MDSC error or something like that and i am not sure what the problem is. Can you help me fix it. I wanted to know how much it exactly costs and is it a good phone or does it suck so if that phone my dad gave is all messed up and cant be fixed. It says google when i slide the clock to activate it do i pay monthly for web if so how much for the t mobile version?