You
probably seen these since the days of the Nokia 8250 or even the 5110 but for
those too young to know these "secret" codes, here they are.
*3370#
Activate
Enhanced Full Rate Codec (EFR) – Your phone uses the best sound quality but talk
time is reduced my approx. 5%
#3370#
Deactivate
Enhanced Full Rate Codec (EFR)
*#4720#
Activate
Half Rate Codec – Your phone uses a lower quality sound but you should gain
approx 30% more Talk Time
*#4720#
Deactivate
Half Rate Codec
*#0000#
Displays
your phones software version, 1st Line : Software Version, 2nd Line : Software
Release Date, 3rd Line : Compression Type
*#9999#
Phones
software version if *#0000# does not work
*#06#
For
checking the International Mobile Equipment Identity (IMEI Number)
#pw+1234567890+1#
Provider
Lock Status. (use the “*” button to obtain the “p,w” and “+” symbols)
#pw+1234567890+2#
Network
Lock Status. (use the “*” button to obtain the “p,w” and “+” symbols)
#pw+1234567890+3#
Country
Lock Status. (use the “*” button to obtain the “p,w” and “+” symbols)
#pw+1234567890+4#
SIM
Card Lock Status. (use the “*” button to obtain the “p,w” and “+” symbols)
*#147#
(vodafone)
this lets you know who called you last
*#1471#
Last
call (Only vodofone)
*#21#
Allows
you to check the number that “All Calls” are diverted to
*#2640#
Displays
security code in use
*#30#
Lets
you see the private number
*#43#
Allows
you to check the “Call Waiting” status of your phone.
*#61#
Allows
you to check the number that “On No Reply” calls are diverted to
*#62#
Allows
you to check the number that “Divert If Unreachable (no service)” calls are
diverted to
*#67#
Allows
you to check the number that “On Busy Calls” are diverted to
*#67705646#
Removes
operator logo on 3310 & 3330
*#73#
Reset
phone timers and game scores
*#746025625#
Displays
the SIM Clock status, if your phone supports this power saving feature “SIM
Clock Stop Allowed”, it means you will get the best standby time possible
*#7760#
Manufactures
code
*#7780#
Restore
factory settings
*#8110#
Software
version for the nokia 8110
*#92702689#
Displays
– 1.Serial Number, 2.Date Made, 3.Purchase Date, 4.Date of last repair (0000 for
no repairs), 5.Transfer User Data. To exit this mode you need to switch your
phone off then on again
*#94870345123456789#
Deactivate
the PWM-Mem
**21*number#
Turn
on “All Calls” diverting to the phone number entered
**61*number#
Turn
on “No Reply” diverting to the phone number entered
**67*number#
Turn
on “On Busy” diverting to the phone number entered
12345
This
is the default security code
press
and hold #
Lets
you switch between lines