*#06# to display the IMEI (International Mobile Equipment Identity)
*#0000# to set the language automaticaly (Reset to english)
*#3370# to set the Enhaced Full Rate
#3370# to Reset the phone
*#9000# to enter sim lock code
*#9001# To enter the corporate code (Bosch 908)
*#9002# To enter the provider code (Bosch 908)
*#9003# to enter the network code
*#9004# to enter the subset code
*#9100# to remove the sim lock permanently
*#9101# to remove the corporate lock permanently
*#9102# to remove the provider lock permanently
*#9103# to remove the network lock permanently
*#9104# to remove the subset lock permanently
*#3262255*8378# (*#DANCALL*TEST#) and you will get a hidden 10th menu.

(SIM-lock is NOT the SP-lock/Service Provider lock!!)

The SIM-lock makes your phone to fusion with the SIM-card,
and the phone will not accept any other SIM cards after you
lock your phone! You get ten chances to type the correct code!
After the tenth time your phone gets "SIM-lock permanently blocked"
, and you will be unable to open it !! The best thing you can do
is to remove the SIM-lock permanently!!