Self Diagnostic Tool for your BlackBerry
RIM has a secret little menu hiding inside your BlackBerry as long as its running OS 4.2 or higher. This little secret is a self diagnostic tool, which will help you figure out if something is wrong with your device. To access this menu simply go options > status > then type test once the application opens simply check off the hardware you want to test.
This will be a handy tool if you need to check someones trackball for example.
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