Install Blackberry Messenger 5

This step by step how to install Blackberry Messenger 5 offline mode.

Step1
Download file zip in this link
Note: This application is for Blackberry used OS 4.6.1 and OS 5.0. You can check your handheld OS at Option --> About

Step2 
Extract the file you've downloaded then copy into your Blackberry using your data cable.
Step3
Open the File Manager from Application --> Files, it should like this

Step4
Select File Folders --> Media Card


Step5
Go into your folder where you place the copy before (BBM 5.0)

Step6
Install BBM version 5 by opening the file BBM_500_en.jad (for OS5) or BBM_461_en.jad (for OS4.6)

Step7
Select download and wait until it's done. If there's an old BBM version or broken installer, it's supposed appear notification Replace, and you just selec Yes.

Note
Before you upgrade or reinstalling the application, you shoul Backup your contact list.
Good Luck ;)