Introduction
The gear shaft is responsible for spinning the blades.
Tools
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            Use the Phillips #1 Screwdriver to unscrew the four 16 mm screws and remove the plastic bottom. 
 
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            Use the Phillips #1 to remove the four 8mm screws. 
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            Use the medal spudger to detach the circuit board from the buttons. 
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            Gently pull and release circuit board from buttons. 
 
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            Remove the screw on top of the fan with the 4mm socket stock wrench. 
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            Remove the fan and washer. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.