*#06# To checking the IMEI (International Mobile Equipment Identity).

*#7780# To reset to factory settings.

*#0000# To view the software version.

*#2820# Bluetooth Device address.

*#746025625# Sim clock allowed status.

#pw+1234567890+1# Shows if sim have restrictions.

*#92702689# – takes you to a secret menu where you might find some of the information as given below:
1. Displays the Serial Number.
2. Displays the Month and Year of Manufacture.
3. Displays the date when the phone was purchased.
4. Displays the date of the last repair.
5. Shows life timer of phone.

\*#3370# – Enhanced Full Rate Codec (EFR) activation.

#3370 – (EFR) deactivation. Phone will automatically restart.

*#4720# – Half Rate Codec activation.

#4720 – Half Rate Codec deactivation. The phone will automatically restart.

Default lock code is: 12345.

Press *#3925538# to delete the contents and code of wallet.