free hotspot without any phone service?

[pachangchit]

i have evo 4g sprint phone that i flashed to use cricket service and realized cricket service suck with flash phone..so now i dont really wanna use this phone with cricket and sprint is too expensive for me... question is

Can i use this evo 4g sprint to catch hotspot without any phone service at all... ???

i use google voice and other app for free service now..work pretty good with the area with wirless. but whenever i go out without wireless..they dont work at all .. so i think if i can catch hotspot..it will work great like a normal cellphone service!!!

thanks! please help ...