Introduction
Tools
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            Remove the four 2.5mm screws from the back assembly with a Torx #04 Screwdriver. Holding the GPS with a free hand while unscrewing the small screws will help stabilize the device. 
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            Holding the GPS with a free hand while unscrewing the small screws will help stabilize the device. 
 
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            Use the plastic opening tool on all four sides of the device to open the Garmin Nuvi LMT2455 Back Panel. 
 
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            Open the device carefully being weary of the orange band that is going from the screen to the mother board. 
 
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            Using the plastic prying tool, carefully pry the speaker from the plastic backing. 
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            Remove the speaker from the motherboard by gently pulling on the wire. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.