*#06# – Shows your International Mobile
Equipment Identity (IMEI) number.
*#92702689# – takes you to a secret menu
where you may find some of the information
1. Displays Serial Number.
2. Displays the Month and Year ofManufacture
3. Displays (if there) the date where the phone
4. Displays the date of the last repair – if found
5. Shows life timer of phone (time passes since
to exit this mode you have to switch your
phone off then on again.
*#2820# – Shows BlueTooth Address for cell
phones with Bluetooth.
*#7780# – Normal reset, restore your cell
phone to factory settings.
*#7370# – Deep reset, restore cell phone to
factory settings and format all user data.
*#0000# – Shows your cell phone’s firmware
*3370# – Activates Enhanced Full Rate codec
(EFR) (your cell phone uses the best sound
quality but talk time is reduced by approx. 5%).
#3370# – Deactivate Enhanced Full Rate codec
*4720# – Activate Half Rate codec (your cell
phone uses a lower quality sound but you
should gain approx. 30% more talk time).
#4720# – Deactivate the Half Rate codec.