In the past we’ve explained how to clean your BlackBerry trackball if it’s starting to stick or otherwise malfunction. Problem is, you can’t use the same method for the Tour 9630. The housing is a bit different, and it doesn’t allow you to remove the ball. Thankfully, CrackBerry forums user kingzee made a video showing you how to clean the trackball using just a strip of paper. If you’re having problems with yours, or just want to keep yours in good repair so you don’t face issues in the future, check out this video.