Nokia codes - very useful

Hi frends,
If u have Nokia cell phone, the following will be
useful for u.

Imagine ur cell battery is very low, u r expecting an
important call and u don't have a charger.Nokia instrument comes with a reserve battery. To activate, key is " *3370# " Ur cell will restart with this
reserve and ur instrument will show a 50%incerase in battery.This reserve will get charged when u charge ur
cell next time.

*3370# Activate Enhanced Full Rate Codec (EFR)-Your
phone uses the best sound quality but talk time is reduced by 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

*#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

*#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
Unrea chable(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
DIVERTING>>>

**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

*#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)