Thank you so much! My phone hung up for no reason and it was refusing to power down. I could see that while the screen remained blank, it was still powered on (the faint backlight was visible) and the top half of the handset began heating up. I followed your advice and pressed the Power button + Volume up button and it restarted just fine. I'm holding on to .510 firmware and have resisted the upgrade to .532 due to various issues cited by others on this forum.
... View more