Other secret tricks for sony ericsson mobile or cellphone

Language Menu for BenQ-Siemens mobile
English menu:
*#0001#
Deutsch menu:
*#0049#

Secret Code for BenQ
*#0606# remove sim card before

Unlock Sim:
*#0003*(secret code)#

Bonus Screen:
*12022243121

Factory settings:
Type *#9999# to reset factory settings.