Nokia and Siemens Mobile Secret Codes Part-3
NOKIA8810
*#06# - IMEI
*#0000# -Software version
*#92702689# (or *#war0anty#) Enter service mode.
*3370# -Turns on sound encoding system - Enhanced Full Rate.
#3370# -Turns off sound encoding system - Enhanced Full Rate.
*4720# -Turns on battery save mode - saves about 30 % of energy
#4720# -Turns off battery save mode - saves about 30 % of energy
NOKIA 99OO
*#06# -IMEI
*#682371158412125#...