*3370# This Nokia code activates Enhanced
Full Rate Codec (EFR) - Your Nokia cell 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# With this Nokia code you can
deactivate the 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# This lets you know who called
you last (Only vodofone).
*#1471# Last call (Only vodofone) .
*#21# This phone code allows you to check
the number that "All Calls" are diverted to.
*#2640# Displays phone security code
in use .
*#30# Lets you see the private number.
*#43# Allows you to check the "Call
Waiting" status of your cell 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# Phone code that 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 .
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