Umx U670c Root Download

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?. Samsung galaxy s2 how to install app on sd card by default, Setting galaxy s2 download apps to sd card. my samsung wave 525 shows phone memory full when i run applications, buti have no additional files or apps in phoe memory.