- *#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.
- *#62209526# - Display the MAC address of the WLAN adapter. This is available only in the newer devices that support WLAN
- #pw+1234567890+1# Shows if sim have restrictions.
- *#92702689# - takes you to a secret menu where you may find some of the information below:
- *#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
- 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
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