Blackberry Secret Codes

Name	Description	How-to
Address Bookdata structure rebuild	Forces a data structure re-build in the Address Book	In the Address Book, hold "Alt" and press "R", "B", "L", "D".
Address Bookfile verification.	Checks the data in your Address Book for inconsistencies.	In the Address Book, hold "Alt" and press "V", "A", "L", "D".
Decibel meter.	Displays your signal strength in decibels, instead of bars.	Hold "Alt" and press "N", "M", "L", "L" (repeat to reverse the effect).
View website source code.	Displays the source code of a Web page.	In the Browser, hold "Alt" and press "R", "B", "V", "S".
Help Me! menu.	Provides crucial technical information about your device.	Hold "Alt" and (left) "shift", then press "H".
IMEI display.	Displays your device's international mobile equipment identity (IMEI – your serial number) on-screen… Also works from all other GSM handsets.	Type "*", "#", "0", "6", "#" on the Home screen.
"Soft" reset.	Performs a "soft" reset of your device; the equivalent of doing a "battery pull" (ie. Removing the battery for a few seconds).	Press-and-hold "Alt", then press-and-hold (left) "shift", then press-and-hold "Del".
Event Log.	Displays event logs of all the system-level events that occur on your device.	Hold "Alt" and press "L", "G", "L", "G".
add a category titled "Buyer's Remorse"	tell how many hours of phone use and whether there is an ITpolicy on the phone.	Go to menu options "Options" "Device" "Device and Status Information" Now type the following letters on the keypad: buyr

All of these secrets have been tested on my BlackBerry 8900;

The above secrets may or may not work on BlackBerry Pearl series handsets.

In some cases, you will need to be on the Home screen when you enter these codes.

Hope it useful 

- S f