Introduction
If the phone is having internet issues or memory problems, replacing the SIM/SD Port could resolve these problems.
Tools
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            Using either your thumbnail or a plastic opening tool, lift up on the battery using the notch in the bottom left hand corner of the battery and remove it from the phone. 
 
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            Use the plastic opening tool to firmly pry up the plastic backing around the perimeter of the phone. 
 
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            Detach the black rectangular film attached to the SIM/SD card plate with a plastic opening tool. 
 
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            Gently wiggle the plate side-to-side while pulling up to release it from the metal clamps holding it in. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.