Hi, I want to know how to unlock the keypad in 8900. It says press unlock button but what does it mean by "unlock button". There is no button on top or anywhere. Plz help !!

Press * and then the green 'call' button.

a'right thanx...

Yep, there is no buttons on the top of 8900, you press the sign on the left-top of your BB 8900 for Lock and Unlock keypad.
On the right-top yu=ou can push it for Standby Mode (the key pad won't active)

So those two buttons on the top of the 8900 (mute on the right; lock on the left) aren't really there?

o i see, thank you mubarik, thank you fonejunkie. The advice of both of you, works very fine and my problem is now completely solved