Will a locked phone ever "relock" itself?

[RMskater]

Is it possible for a phone that has been unlocked, via a code to "relock" itself? I'm just wondering, because I have an unlocked "Nokia 6200" which is unlocked. I'm just wondering if there is a way to accidently lock the phone. If I were stupid, and I put codes in that I knew weren't my phone's code, even if it were unlocked, then would the phone lock itself?

Thanks!!!

Ethan Sobin

[inderinderinder]

Nope, your safe!