TOP BLACKBERRY SECRET CODES.

As we ought to know,every device has its own hidden features which can only be unlocked with the help of secret codes.

In today's tutorial, we'll be listing some of the Major and most-popular of this widely-used mobile phone.
Here they are...

The first is the code which works on virtually all mobile devices to check their IMEI number i.e *#06#

Hold “Alt” down & press “RBVS” in the Address Book »To view the source code of webpages.

Hold “Alt” & press “NMLL” »
This is called the Decibel meter.
It shows the phone's signal-strength in decibels instead of bars

Address Book data structure rebuild.
|This forces a data structure re-build in the Address Book.|
Hold “Alt” & press “RBLD” in the Address Book to do this.

Address Book file verification
This checks the data in your Address Book for inconsistencies.
Hold “Alt” & press “VALD” in the Address Book.

To do a “Soft” Reset,which is thesame as Removing the battery for a few seconds.
Press & hold “Alt”, then hold left-“shift”, then hold “Del”.

To view the "Help Me! menu" for crucial technical information about the device,
Hold “Alt” & (left) “shift”,then press “H”

To view the Event-Logs,
Hold “Alt” & press “LGLG”

Note 
The codes below will work mostly when you are viewing the home-screen.
A or C »Phonebook
S » Search.F » Phone's profiles.
W or B » Browser. H » help.
K » Locks the keys.
L » Calendar.
V » Messages.
M » Messages folder. R » alarm.
T »Tasks.
U » Calculator.
I » Applications.
O » Options.
P » Phone.
T » Top of page (in browser).
»B » Bottom of page (in browser).
Space » Page down (in browser).
D » Memo pad.
U » Switch between hide/unhide in browsers title-bar.
ALT + NMLL » To use numbers instead of bars for signal strength.
ALT + Right Shift + Del » Hard reset.