what does the Nokia reset code do to a N73?

Image via Wikipedia A hard reset will reset your N73 phone to the point it was when you got it.  I keyed in *#7370# and it prompted me "restore factory settings to default?"  I clicked yes.  It then asked me for my "lock code"... I keyed in 12345 and clicked OK.  The phone restarted and asked me to select my current city, current time, and current date.  It then asked me if I wanted to do the tutorial which I skipped.  Everything seemed to work okay.  Prior to doing this hard reset I had upgraded my N73 firmware during March 2010. [/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]