NOKIA3110

*#06# -IMEI

*#3110# -Software version

##002# - allows to turn off voice mail.

*#7780# - restore factory settings

*#746025625#(or *#sim0clock#) - to check if clock of sim (SIM-Clock) can be stopped (SIM-Clock-stop is akind of standby mode which saces battery)

*#92702689# (or *#war0anty#) -"warranty code:"- you have to enter one of the following codes:

6232 (OK)displays month and year of production date (ie "0198")

7332 (OK) - displays date of last repair - if there is (ie. "DATE NOT SAVED")

7832 (OK) - displays date of purchase - if there is (ie. "DATE NOT SAVED")