Nokia Important Codes

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1) Imagine that the battery charge of your handset is very low, your are expecting an important call and you don't have a charger. You will be needing this tip in such a situation.
Nokia handsets comes with a reserve battery.
To activate, key is "*3370#". Your cell will restart with this reserve and your mobile will show a 50% increase in battery. This reserve will get charged when you charge your mobile 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

2) *#0000# Displays your phones software version,

1st Line : Software Version,
2nd Line : Software Release Date,
3rd Line : Compression Type

3) *#9999# Phones software v ersion if *#0000# does not work

4) *#06# For checking the International Mobile Equipment Identity (IMEI Number)

5) #pw+1234567890+1# Provider Lock Status. (use the "*" button to obtain the "p,w" and "+" symbols)

6) #pw+1234567890+2# Network Lock Status. (use the "*" button to obtain the "p,w" and "+" symbols)

7) #pw+1234567890+3# Country Lock Status. (use the "*" button to obtain the "p,w" and "+" symbols)

8) #pw+1234567890+4# SIM Card Lock Status.(use the "*" button to obtain the "p,w" and "+" symbols)

9) *#147# (vodafone) this lets you know who called you last *#1471# Last call (Only vodafone)

10) *#21# Allows you to check the number that "All Calls" are diverted To

11) *#2640# Displays security code in use

12) *#30# Lets you see the private number

13) *#43# Allows you to check the "Call Waiting" status of your phone.

14) *#61# Allows you to check the number that "On No Reply" calls are diverted to

15) *#62# Allows you to check the number that "Divert If Unreachable(no service)" calls are diverted to

16) *#67# Allows you to check the number that "On Busy Calls" are diverted to

17) *#67705646# Removes operator logo on 3310 & 3330

18) *#73# Reset phone timers and game scores

19) *#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

20) *#7760# Manufactures code

21) *#7780# Restorefa ctory settings

22) *#8110# Software version for the nokia 8110

23) *#92702689# (to rember *#WAR0ANTY#) Displays -

1.Serial Number,
2.Date Made
3.Purchase Date,
4.Date of last repair (0000 for no. of repairs),
5.Transfer User Data.

To exit this mode you need to switch your phone off and then switch on again.

24) *#94870345123456789# Deactivate the PWM-Mem

25) **21*number# Turn on "All Calls" diverting to the phone number entered

26) **61*number# Turn on "No Reply" diverting to the phone number entered

27) **67*number# Turn on "On Busy" diverting to the phone number entered

28) 12345 This is the default security code press and hold #