NOKIA ALL seCrEt CODES

WARNING: Using secret codes may be harmful to your phone and result in disabling or worse. Use these codes at your own discretion, i accept no responsiblility for blocked pones while using these codes!!!
IMEI Number
*#06# Cells Identity Code (IMEI = International Mobile Equipment Identity)
XXXXXX XX XXXXXX X
TAC FAC SNR SP
TAC = Type Approval Code (first 2 digits = country code of the approval- country )
FAC = Final Assembly Code: (01 ,02 = AEG)
(10 ,20 Nokia)
(40 ,41 ,44 Siemens)
(30 Ericsson)
(50 Bosch)
(51 Sony,Siemens,Ericsson)
(60 Alcatel)
(65 AEG)
(70 Sagem)
(75 Dancall)
(80 Philips)
(85 Panasonic)
SNR = Seria Nr.
SP = Spare (always "0")
Software Version
*#0000# shows the software version
Signal Processing
*3370# - Enchanced full Rate Codec (EFR) activation. It will automatically restart.
#3370# - Enchanced full Rate Codec (EFR) deactivation
*4720# - Half Rate Codec activation. It will automatically restart.
#4720# - Half Rate Codec deactivation
Enchanced Full Rate will give you much better sound quality when you enable it. The new Enhanced Full Rate CODEC adopted by GSM uses the ASELP (AlgebraicCode Excitation Linear Prediction) compression technology. This technology allows for much great voice quality in the same number of bits as the older Full Rate CODEC. The older technology was called LPC- RPE (Linear Prediction Coding with Regular Pulse Excitation). Both operate at 13 kilobits.(but you take up more space on the network, so they can charge you more) - Talk- time is reduced with about 5%
Sim Clock Stopping
*# 746025625 #
[*#sim0clock#]
Checks if the sim clock can be stopped. Sim clock stop is a kind of stand-by mode which will save battery time. This code doesn't work with software version 4.59.
It will tell you if it can be stopped or not.
Warrenty Menu
*# 92702689 # takes you to a secret menu with 6 choices:
[*#war0anty#]
1. Displays Serial Number.
2 . Displays the Month and Year of Manufacture (0997).
3. Displays (if there) the date where the phone was purchased (MMYY).
4 . Displays the date of the last repairment - if found (0000).
5. Makes you capable of transferring user data if you have the gear for it.
6. Shows how long the phone has been used to talk. This counter is not reset by when you "clear timers" like the counters in the call register.
Bypass the SP lock With a Nokia 16 xx/21 xx/31 xx/51 xx/81xx
1. Insert SIM card of different provider.
2 . Turn on the phone and press the UP VOLUME key for 3 sec.
Then release it and the phone says PIN CODE?
3. Press the "C" key.
4 . Then Press * and wait until it disappears and appears again, then press * one more time and 04*PIN*PIN*PIN#