Sony Ericsson Secret Code's,

IMEI (International Mobile Equipment Identity): *#06#

Firmware Version: >*<<*<*

Programming Checks: >*<<*<*> or >*<<*<*>

Accessing the phone without a SIM card: **04*0000*0000*0000# then on ‘Wrong Pin’ No

Reset English Menu: *#0000#

300, 600, 700 Series

Programming Menu (Short): 987 + >

Programming Menu (Long): 923885 + >

Field Test: 904090 + > (to exit 904090 + >)

Phone Test: 904059 + > (to exit 3 + <)

Phone Reset: 904060 + >

CDMA Mode: 904093 + menu

Analog Mode: 904095 + menu DM mode 904959 + menu