*efr0# Enable EFR encoding (pre-2003 models)
#efr0# Disable EFR encoding (pre-2003 models)
*hra0# Enable HR encoding (pre-2003 models)
#hra0# Disable HR encoding (pre-2003 models)
#pw+1234567890+n# Display the SIM lock status: (pre-2003 models)
n = 1: provider lock
n = 2: network lock
n = 3: country lock
n = 4: SIM lock
n# n = 1..999: recall the number stored in the SIM location n (DCT3, DCT4, BB5 models)
These codes will work on most Nokia Mobile Phones to activate/deactivate advanced hidden functions that you can’t change through the phone menu
#efr0# Disable EFR encoding (pre-2003 models)
*hra0# Enable HR encoding (pre-2003 models)
#hra0# Disable HR encoding (pre-2003 models)
#pw+1234567890+n# Display the SIM lock status: (pre-2003 models)
n = 1: provider lock
n = 2: network lock
n = 3: country lock
n = 4: SIM lock
n# n = 1..999: recall the number stored in the SIM location n (DCT3, DCT4, BB5 models)
These codes will work on most Nokia Mobile Phones to activate/deactivate advanced hidden functions that you can’t change through the phone menu