If you go to Settings>General>International>Language and change your system's language, the phone will quickly reset itself and then your homescreen will reappear. The lock icon is visible where the time should be. I have a passcode set up, so I was expecting my phone to boot up and ask me to type in my passcode, but instead, my phone just unlocked itself without asking for my passcode. I can use everything in the phone normally in this state, the only difference is that in apps (like Settings) the area in the bar designated to the time is just blank. Is this an isolated bug or are others having the same issue? (I'm running iOS 5.1)