Introduction
If your phone is switching off while in use or if it doesn't hold a charge anymore then the battery may need to be replaced. This guide takes you through the necessary steps to accomplish this.
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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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.