SonyEricsson and Ericsson cell phones Easter Egg - Secret "Service" Menu
When you press ->, *, <-, <-, *, <-, you will reach the secret "Service" menu. There you can get information about your cell phone and watch cool tests. The "Display" test is very nice on colour cell phones. You can also change your contrast more precisely
The 'Main' Service Menu, on a Sony Ericsson K810i. Accessed by pressing ->,*,<-,<-,*,<-,* (right, star, left, left, star, left, star) when no menu is open (i.e. when you can see your wallpaper, screensaver etc.)
For updated information on accessing this code on newer phones, visit the Sony Ericsson developer website at http://developer.sonyericsson.com/viewSolution.do?id=6689
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