Introduction
Prereq guide to remove the board access panel from the Samsung RF28R7201SG refrigerator.
Tools
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            Use a Phillips screwdriver to remove the five screws securing the board access panel to the back of the refrigerator: 
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            Four 14.8 mm-long screws 
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            One 12.3 mm-long screw 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.