Mobile Phones Must Known Codes - Very Usefull

1 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

2 *#0000# Displays your phones software version,

1st Line : SoftwareVersion,
2nd Line : Software ReleaseDate,
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 vodofone)

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 Unrea chable(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 lastrepair (0000 for no repairs),
5.Transfer UserData.

To exit this mode-you need to switch your phone off then 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 # Lets you switch between lines