I have had my Samsung S2 since January 2012. Recently the home button has stopped working. Every time I pressed the power button it took a picture, I presume the home button is stuck. I now have upgraded the firmware, the screen keeps flashing on presumably because the home button is still stuck and I can't use it.
My phone was previously rooted. I don't think it is any more because of the new firmware. PDA:LP7 / PHONE:LPS / CSC:LP5 (XEU). Could it be hardware or software? I'm from the UK if that makes any difference.