Introduction
Tools
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            Pop off the front two rubber footings from the bottom of the device, revealing 2 hidden main panel screws. 
 
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            Position the device so that its bottom is on your work surface, and its top is facing up. 
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            Remove the lid of the device. 
 
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            Now the circuit board should be able to be removed from the casing of the device except for two wires that are attached to the casing. 
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            Detach the black wires from the casing, by pulling them out of the cable ports. 
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            Using pliers or a similar tool, detach the red wires from the small circuit board that is attached to the case of the device. 
 
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            Now it's time to replace the old circuit board with the new one. 
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            Push the two black wire's ends into the cable ports on the back panel of the casing. 
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            Solder the ends of the two red wires onto the small circuit board on the front panel of the device. 
 
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            Correctly place the circuit board back into the case of the device and replace all six screws on the circuit board. 
 
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            Snap the front and back panels back into place and reassemble the device. 
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            Now replace all the screws on the bottom and you are done! 
 
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The device should now be working properly. If the device does not function properly the replacement motherboard may be faulty, or the wires may not have been properly connected.