always reset the setting on anything electronic especially mobile phones as you might get a e-mail like this :)
"Phone works with my SIM OK. I've already got the manual from my phone which packed up. Perhaps you could tell me how to remove the message which pops up when I switch on though. It says "Bad Motherf***er"
Many thanks
Julian"
i can't stop laughing plus it wasn't censored either on the phone hehe