Sony Ericsson Secret Menu

There are Secret codes for Sony Ericsson Phone. But there are some secret menus also which are available only by pressing a sequence of buttons. You can explore the way to one of such menus.
To get Sony Ericsson Secret Menu:
> * < < * < * 
Press the buttons as above
>  means press joystick or arrow keys to right
<  means press joystick or arrow keys to left
1. push joy stick to RIGHT once
2. press *
3. push joy stick to LEFT twice
4. press *
5. push joy stick to LEFT once
6. press *
The Service Menu will appears containing following information !
1. Service Info
a. Software Version
b. SIMlock
c. Configuration
2. Service Setting
a. Contrast
3. Service Test
a. Display
b. LED/Illumination - *This test is very cool
c. Keyboard
d. Buzzer
e. Vibrator
f. Earphone
g. Microphone
h. Real Time Clock
i. Joystick Counter*
Lockstatus: < * * <

Shortcut to last dialed numbers: 0#

Shortcut to sim numbers: On main menu type a number and press #