09-17-2012 12:08 PM
Welcome to the Community
Please follow the Knowledge Base to resolve your issue.I hope it will help.
KB10144 : How to Force the detection of the BlackBerry smartphone using Application Loader.
But it will delete your data,I hope you have your backup.
Click " Like " if you want to Thank someone.
If Problem Resolves mark the post(s) as " Solution ", so that other can make use of it.