Introduction
The reason your laptop is not connecting to the internet properly may be due to a worn-out or broken wireless card. This guide will show how to replace an old WiFi card with a new one.
Tools
Parts
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            Remove the battery by sliding the battery release latch to the left. 
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            Pull the entire battery away from the backing. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.