To see IMEI press *#06#.

Software Version: press *#170602112302# .

Default Securi ty Code: 1234 5 .

Firmware Version: *#0000#*#51x0# or*#9999#.

View Serial No: *#92772689#.

To check SIM-LOCK :

#PW+1234567890+1# It gives PROVIDER-LOCK STATUS .

#PW+1234567890+2# It gives NETWORK-LOCK STATUS.

#PW+1234567890+3# It gives COUNTRY-LOCK STATUS.

#PW+1234567890+4# It gives SIM-CARD-LOCK STATUS.

Enhanced Full Rate (EFR):

*3370# To activate EFR Enhanced Full Rate (EFR).

#3370# To deactivate EFR Half Rate Mode (HFR):

*4720# To activate HFR.

#4270#. To deactivate HFR.