Introduction
The Terracopter EVO controller motherboard is used to control all of the functions of the controller and relay them to the drone.
Tools
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            Using a Phillips #0 screwdriver, remove the screw connecting the battery cover to the controller. 
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            Remove the battery cover from the controller. 
 
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            Orientate the controller to where the battery compartment is facing upwards. 
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            Remove the four 5mm and four 4mm Phillips #1 screws from the case. 
 
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            Since the battery wires are still attached, carefully move the rear panel down to expose the motherboard. 
 
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            Locate the set of four green wires and one black wire attached to the motherboard. 
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            Remove the male, white connector by pressing up on the two tabs on the female connector. Then, pull the connector away from the female connector on the motherboard 
 
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            Locate the single pin holding the negative and positive wires to the motherboard. Each lead should have one pin holding each wire to the green side of the motherboard. 
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            Using a soldering iron, melt the existing solder point for the red lead (positive line). 
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            Using a soldering iron, melt the existing solder point for the black lead (negative line). 
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            Pull the red and black leads through their respective holes, out of the motherboard. 
 
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To reassemble your device, follow these instructions in reverse order.