Introduction
If you encounter issues while connecting to wireless internet connections, replacing your wireless card may enable you to access the internet.
Tools
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            Remove the following 14 screws: 
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            Thirteen 5 mm Phillips #1 screws 
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            One 3.5 mm Philips #001 screw 
 
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            Carefully insert the plastic opening tool in the seam between the lower casing and the chrome bezel. 
 
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            Slide the opening tool across all sides of the lower case, and lift it up to remove the case and reveal the internal components. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.