11-10-2012 06:05 AM
Welcome to BlackBerry Support Community Forums
Please go through this Knowledge Base Article and follow the Suggestion and see if that help in resolving your problem with your trackpad.
KB29640 : Trackpad ,trackball, or keyboard not working on a BlackBerry Smartphone.
So please try it and let us know how it goes.
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If Problem Resolves mark the post(s) as " Solution ", so that other can make use of it.