Downgrade BBM 5.0 to 4.5/4.6

How to:

• Uninstall BBM
  (Options > Advanced Options > Applications > Choose Blackberry Messenger > Menu (blackberry logo on your keypad) > Delete> restart your handheld
• Download from OTA links below.

Dislaimer:
I’m not responsible to any lost of BBM contacts during process
8100/8300
http://tjiputra.yapeter.net/bbm/8100/bbm8100_4_5.jad
8220
http://tjiputra.yapeter.net/bbm/8220/bbm8220_4_6.jad
8900
http://tjiputra.yapeter.net/bbm/8900/bbm8900_4_6.jad
9000
http://tjiputra.yapeter.net/bbm/9000/bbm9000_4_6.jad
9500
http://tjiputra.yapeter.net/bbm/9500/bbm9500_4_7.jad
Semoga bermanfaat