Nokia 3110 Cell Phone Secret Codes.
*#06# : Checking the IMEI (International Mobile Equipment Identity)

*#7780# Restores Factory Settings (Memory, language, counters are not included).

*#3110# : Checking the phone's software (SW) - Also called "Firmware Revision Information".

*#746025625# [*#sim0clock#]
Checks if the SIM clock can be stopped. SIM clock stop is a kind of stand-by mode which will save battery time. This code doesn't work with software version 4.59.

*#92702689# [*#war0anty#]
Press the following warranty code :
6232 (OK) : Displays the Month and Year of Manufacture (0997)
7332 (OK) : Displays the date of the last repair - if found ('DATE NOT SAVED'...)
7832 (OK) : Displays (if found) the date where the phone was purchased ('DATE NOT SAVED'...)
9268 (OK) : Displays Serial Number
37832 (OK) : Set the Purchasing Date MMYY
(Warning : You can only set this once.)
87267 (OK) : Transfers ALL phone numbers, pictures, sounds from one phone to another

Service Prover Lock