Getting your IMEI (International Mobile Equipment Identity):
Number: *#06#

Access Software version:
> * < < * < *

Reach last dialed numbers:
0 then #

The Sony Ericsson Secret Menu screen:
-> * <- <- * <- *

Change to Default Language (English):
<>

Info about SIMLOCK:
< * * <

Opening phone without a SIM card:
**04*0000*0000*0000# followed by on ‘Wrong Pin’ number


Service menu :
>*<<*<*

note : [>] and [<] are the navigation keys

Lock status :
<**<

IMEI number :
*#06#

Access contacts on sim card :
Any nubmer then # (e.g. 9# to go to 9th entry on sim card.)

Smart Trick :

Light up clock in standby mode
Press the volume button

Mute a phone call without rejecting it
Press the volume button

Hidden Smileys
:-]
:-[
[:]