if you press this, *#92702689# :
all the information on your phone will show.
also if you will panic, you cannot close the phone.
the only solution is to turn it off. hahaha.

**actually it will work on new nokia phones but it will not relock like the old models..you can still press "EXIT"...

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PEACE NOT WAR FOR 2008!
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also if you are iphone user, check this forum:
http://www.qatarliving.com/node/44597#comment-250429