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The Garmin Nuvi 2455LMT is an easy device to open and access. The only small parts to be aware of are the four 2.5mm Torx #04 screws on the back panel assembly. Opening up the GPS will only take 5-10 minutes and requires a plastic opening tool and the Torx 4 screwdriver.

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crwdns2931653:01crwdne2931653:0 Back Panel Assembly

Garmin Nuvi 2455LMT Back Panel Assembly Replacement, Back Panel Assembly: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

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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Garmin Nuvi 2455LMT Back Panel Assembly Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0

Garmin Nuvi 2455LMT Back Panel Assembly Replacement: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

Use the plastic opening tool on all four sides of the device to open the Garmin Nuvi LMT2455 Back Panel.
To properly remove the back cover assembly pry open both the back and sides of the assembly.

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Garmin Nuvi 2455LMT Back Panel Assembly Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0

Garmin Nuvi 2455LMT Back Panel Assembly Replacement: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0

Garmin Nuvi 2455LMT Back Panel Assembly Replacement: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

Open the device carefully being wary of the orange band that is going from the screen to the motherboard.
Remove the orange band by carefully lifting the lip that connects it to the motherboard.

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