On the main screen type
*#06# for checking the IMEI (International Mobile Equipment Identity).
*#7780# reset to factory settings.
*#67705646# This will clear the LCD display(operator logo).
*#0000# To view software version.
*#2820# Bluetooth device address.
*#746025625# Sim clock allowed status.
#pw+1234567890+1# Shows if sim have restrictions.
*#92702689# - takes you to a secret menu where you may find some of the information below:
1. Displays Serial Number.
2. Displays the Month and Year of Manufacture
3. Displays (if there) the date where the phone was purchased (MMYY)
4. Displays the date of the last repair - if found (0000)
5. Shows life timer of phone (time passes since last start)
*#3370# - Enhanced Full Rate Codec (EFR) activation. Increase signal strength, better signal reception. It also help if u want to use GPRS and the service is not responding or too slow. Phone battery will drain faster though.
*#3370* - (EFR) deactivation. Phone will automatically restart. Increase battery life by 30% because phone receives less signal from network.
*#4720# - Half Rate Codec activation.
*#4720* - Half Rate Codec deactivation. The phone will automatically restart
If you forgot wallet code for Nokia S60 phone, use this code reset: *#7370925538#
Note, your data in the wallet will be erased. Phone will ask you the lock code. Default lock code is: 12345
Press *#3925538# to delete the contents and code of wallet.
Unlock service provider: Insert sim, turn phone on and press vol up(arrow keys) for 3 seconds, should say pin code. Press C,then press * message should flash, press * again and 04*pin*pin*pin#
*#7328748263373738# resets security code.
Default security code is 12345
Change closed caller group (settings >security settings>user groups) to 00000 and ure phone will sound the message tone when you are near a radar speed trap. Setting it to 500 will cause your phone 2 set off security alarms at shop exits, gr8 for practical jokes! (works with some of the Nokia phones.)
Press and hold "0" on the main screen to open wap browser :blink:
The listed "*3001#12345#" code is actually what we in the cellular industry refer to as the "Long programming code".
This code only actually functions (usefully) on TDMA and CDMA phones. The reason for this being that with both CDMA and TDMA phones, your number is registered on the network within terms of the serial code (ESN) of your phone, and thus the phone needs to be programmed with the SID, SOC, and various network programming necessary to your phone picking up the correct providers.
Which all operates entirely differently in the US than overseas.
Needless to say, most of this is held in the SIM card on GSM phones, and is programmed over the air, which means that there's no point in you screwing around with your phone (thank goodness) saving us poor bastards in tech support large amounts of time wondering what you've done to your phone this time.
The "short" programming code for Nokia CDMA and TDMA phones is *#6391#. This will bring up:
The MDN, or phone number,
(depending on how old the phone is) the MIN,
The SID
And the SOC.
Much of troubleshooting for TDMA or CDMA phones not functioning or picking up the network consists of doing a Dummy ESN Change and then doing the short programming to kick the phone through into the network, often with a Hard Power Cycle involved.
