Introduction
If your device no longer takes a charge, replacing the battery may breathe new life into the tablet.
Tools
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            Begin by opening the HDMI/USB port cover on the left edge. 
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            Remove the three #000 headed, 3 mm long screws located underneath the port cover. 
 
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            Locate and open the Micro SD slot on the top side of the device. 
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            Remove the two screws located beneath the cover. 
 
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            Attach the suction cup to the top right area of the screen. 
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            Pull to separate the screen from the rest of the device. 
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            Detach the display ribbon cable. 
 
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            Remove the seven 3 mm Phillips #000 screws that hold the battery in place. 
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            Carefully remove the battery from the back assembly. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.