(these codes will work on all models of Nokia Asha Series)
So here I am giving you a complete list of secret codes which can be used on all the models of Nokia Asha series smartphones.
1. *#0000# – display software version
2. *#7780# – reset to factory settings
3. *#06# – Display IMEI number
4. *#92702689# – This code will take you to a secret menu where you will find following information
1. Displays Serial Number.
2. Displays the Month and Year of Manufacture
3. Displays (if there) the date where the phone was purchased (MMYY)
4. Displays the date of the last repair – if found (0000)
5. Shows life timer of phone (time passes since last start)
5. *3370# – activates the reserved battery on your phone
6. *#73# – reset timers and game scores
These codes are not tested by so use on your own risk