PSP Blue Screen Of Death
Many of you may have come across an article about six months ago (on sites such as [tag]digg[/tag]), which showed a crashed PSP with a blue screen. The image that was showed back then was actually a result of what would occur if your PSP were to crash when running a homebrew application. But the…

Setting Information is corrupted. Press the O button to repair and restore default settings. (displayed in 10 languages)
When this occurs none of the buttons function (even power switch) other than the O button. Once it is pressed it starts to restart and it goes through the startup splash screen. After that it displays the setup process that everyone goes through the FIRST time the PSP is turned. Also to note, the PSP that got a Blue Screen has never had any homebrew applications on it and has never been downgraded. There was no mention of this crash screen anywhere in the manual or online, if this has happened to you let everyone know by commenting below.
Links: U.S. PlayStation.com | Latest Firmware Update
Related: PSP v2.60 Review | DownGrade PSP | TiVo 2 PSP