Introduction
The process of replacing the trackpad of your BlackBerry Bold 9900 will allow you to become familiar with your device and restore full functionality of the trackpad.
Tools
Parts
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Place phone screen down.
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Use your finger to life upward on the battery case.
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Pull the cover away from the battery.
 
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The MicroSD card is located where the red rectangle is shown.
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To remove MicroSD card, push the card inward towards the top of the phone then release. The MicroSD card will be ejected.
 
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The trackpad is attached via ribbon cable. Pull this cable up in order to release the trackpad.
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.