01)See your mobile IMEL ( International Mobile Equipment Identity ) no *#06#.
02)*#92702689# Nokia life time.
03)*#7370# Nokia reset phone.
04)*#0000# Nokia phone details.
05)Your phone original or not ?
After then you see a serial number consist is digit numbers
-If the digital number seven and eight is 02 or 20 that mean it was assembeled on unknown country which is very bad quality.
-If the digital number seven and eight is 01 or 10 that mean its manufactureed in Finland which is good.
-If the digital number seven and eight is 08 or 80 that mean its manufactured in Germany which is not bad.
-If the digital number seven and eight is 00 that mean it was manufactured in original factory which is the best mobile quality.
-If the digital number seven and eight is 13 mean it was assembeled on Azerbaijan which is very bad quality and very dangures for health.
06)*#67705646# this will clear the LCD display.
07)*#2820# Bluetooth device address.
08)*#62209526# sim clock allowed status.
09)*#62209526# display th eMac address of the WLAN adapter.
10)*#92702689# takes you to a security menu where you may find some of the information.
-Displays serial number.
-Display the month and year of manufacture.
-Displays the data where the phone was purchased.
-Displays the date of the last repair.