Garmin Nuvi 255W Logic Board Replacement Repair Guide

Difficulty

Moderate

Steps

7

Time Required

                          10 - 20 minutes            

Sections

2

• Rear Casing
• 3 steps
• Logic Board
• 4 steps

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Introduction

What you need

Step 1

              Rear Casing               

• Peel off the sticker from the bottom of the device to reveal two screws.

Peel off the sticker from the bottom of the device to reveal two screws.

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Step 2

• Remove two T5 Torx screws.

Remove two T5 Torx screws.

Step 3

• Insert a plastic opening tool in the gap between the front and rear casing.
• Carefully work the tool around the gap, separating the two halves of the case.
• Keep the power switch in place while removing the rear case.

Insert a plastic opening tool in the gap between the front and rear casing.

Carefully work the tool around the gap, separating the two halves of the case.

Keep the power switch in place while removing the rear case.

Step 4

              Logic Board               

• Peel away the tape holding the ribbon cable in place.
• Disconnect the ribbon cable by using a spudger to flip up the retaining flap on its ZIF-style connector. Then gently remove the cable.

Peel away the tape holding the ribbon cable in place.

Disconnect the ribbon cable by using a spudger to flip up the retaining flap on its ZIF-style connector. Then gently remove the cable.

Step 5

• Pull out the cable between the logic board and the speaker to disconnect them.

Pull out the cable between the logic board and the speaker to disconnect them.

Step 6

• Remove the three screws from the logic board using the #00 Phillips screwdriver.
• Lift the board away from the case but do not pull the logic board completely off, as it is still attached to the battery by a cable.

Remove the three screws from the logic board using the #00 Phillips screwdriver.

Lift the board away from the case but do not pull the logic board completely off, as it is still attached to the battery by a cable.

Step 7

• Detach the logic board form the battery by pulling out the cable.

Detach the logic board form the battery by pulling out the cable.

To reassemble your device, follow these instructions in reverse order.

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                    Anjelica                     

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                       Cal Poly, Team 25-90, Amido Spring 2010                        

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