I recently purchased a Sony Ericsson W830. I booted the phone and inserted my SIM card and immediately began to change a few settings here and there (things such as theme and wallpaper). After about an hour of changing themes, I went into the games section. I played all of the pre-installed games, such as the Sims 2. Then, I stumbled upon a game called 'execute' which looked a bit peculiar, because it didn't have a thumbnail next to it with an image. I selected it and the screen went black. I couldn't exit the game, so I took off the back cover and took the battery out. I waited about ten minutes and put the battery back in. Now, the phone will not boot no matter what I do. Can anyone give me some advice?