Some info in case u have a NOKIA Mobile...

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 : 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 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#R emoves 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
repairs),
5.Transfer User Data.
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 #
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