Tools
Parts
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                  - 
            Switch off the phone. 
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            Remove the SIM / memory card cover. 
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            Remove any SIM and memory cards. 
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            Use screwdriver torx T5 and unscrew the two screws at the bottom of the battery / back cover. 
 
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                  - 
            Use a plastic tool and slowly separate the back cover. 
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            The loudspeaker is inside on the back cover. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.