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

*#3110# For checking the phone's software (SW) - called firmware revision information.

*#746025625# [*#sim0clock#] To check if the Sim-Clock can be Stopped (Sim-clock-stop is a kind of standby mode which will save battery time)

*#92702689# [*#war0anty#] Phone asks 'warranty code:'

6232 (OK) Displays the Month and Year of Manufacture

9268 (OK) Displays Serial Number

7332 (OK) Displays the date of the last repairment - if found

7832 (OK) Displays (if found) the date where the phone was purchased

37832 (OK) Set the Purchasing Date MMYY (This date can be set only once!)

87267 (OK) Transfers ALL phone numbers, Logo's, and ringtones from other gsm phones

Nokia 8810 Secrets/Codes
General 8810 Secrets/Codes

IMEI number
*#06#

Software Version
*#0000#

1st Line - Software Version
2nd Line - Date of Software release
3rd Line - Phone Type.

Serial Number
*#92702689#

1st Screen - Date of phone manufacture
2nd Screen - Serial #, IMEI
3rd Screen - Purchasing date
4th Screen - Last Repair Date.