Reset Umx U670c

I have a tracfone umx u670c that will not go past the blue, U670c android phone camera freezes. my straight talk phone power button disengaged. pull battery and put it back in and powers up then button dose not work after that?. Can i do a hard reset of my umx max phone? - answers, Can some please help memy brother came to belize to visit and he gave me a umx mxc-570 phone for my birthday but its lockedi need to unlock it in order to use it. How to unlock net10 phone umx? answered! - interesting, Can some please help memy brother came to belize to visit and he gave me a umx mxc-570 phone for my birthday but its lockedi need to unlock it in order to use it. How do hard reset a lg l45c tracfone? - can`t get on my, Lg smartphone tracphone how to factory reset. my power button doesnt work on factory reset i cant click on either of the options to reset my phone the volume buttons.