I dropped my SIII Mini from about two feet and when I picked it up, the power, home, menu and back buttons werenít working. I pulled the battery and then the power button started working. I turned it back on and my phone was functioning perfectly - except for the bottom buttons. Whenever I accidentally press the home button, my phone heats up really quickly. Iíve opened up the back and made sure the connectors were in place. Could it be a short circuit? What can I do about this?