Hi guys!

I tried formatting the memory stick of my k750i, since it was acting crazy. Sometimes I download mp3s from my pc, the songs were downloaded, the memory stick seems to delete all the files it stored. Not only the downloaded files were deleted, but also the files that were previously in the memory stick. Anyway, when I format the memory stick from the phone, it asked for a security code or something. Anyone knows what the default code is? Cause I didn't configure a security code for this before.