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Most of the LG Cosmos 2 must be disassembled prior to replacing the buttons. Follow these steps to complete this task.
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            Insert the plastic opener into the slot at the top of the device. 
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            Apply gentle pressure with the plastic tool to pop the back case off. 
 
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            Use the plastic opener to lift, and remove, the device battery. 
 
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            Use a screwdriver and corresponding bit to remove the six 2mm screws that are located along the edge of the rear case. Set the screws aside. 
 
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            Use the plastic opener to pry the rear case loose. 
 
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            Use a screwdriver and corresponding bit to remove the two 3mm screws that attach the motherboard to the front case. Set the screws aside 
 
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            Rotate the phone 180 degrees and use the plastic opener to lift the metal piece that covers the ribbon cable. 
 
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            Use the plastic opener to disconnect the ribbon cable. 
 
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   crwdns2935267:0crwdne2935267:0Tweezers$4.99- 
                     
            Use tweezers to disconnect the two cables that attach the motherboard to the case. 
 
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            Remove the motherboard from the front case. 
 
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            Use a screwdriver and corresponding bit to remove the four 1mm screws. Set the screws aside. 
 
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            Pull the ribbon cable through the slit in the keyboard case to separate it from the sliding mechanism. 
 
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            Use a screwdriver and corresponding bit to remove the four 3mm screws. Set the screws aside. 
 
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            Use the plastic opener to pry open the front of the phone. 
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            Slip the ribbon cable through the slit to fully separate the two pieces. 
 
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            Use a screwdriver and corresponding bit to remove the two 1mm screws. Set the screws aside. 
 
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            Detach the ribbon cable with the plastic opener. 
 
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            Use the spudger to pry the metal piece loose. 
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            Remove the metal piece along with the two ribbon cables. 
 
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            Flip the front of the phone over and the old option buttons will fall out. 
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            Insert new option buttons. 
 
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
