Introduction

A step-by-step guide to replacing the screen of the Garmin Nuvi 680.

Image 1/1: Remove the two screws on the antenna cover using a T5 Torx screwdriver.
  • Flip open the antenna on the back of the device.

  • Remove the two screws on the antenna cover using a T5 Torx screwdriver.

    • These screws are 4.42 mm long.

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Image 1/1:
  • Remove the antenna cover.

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Image 1/1: Pull the antenna circuit board out of its case.
  • The yellow wire is connected to the motherboard, so you cannot disconnect it until you finish opening the device.

  • Pull the antenna circuit board out of its case.

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Image 1/2: Push the spudger to the right. Image 2/2: Slide the antenna case out slowly or you may lose the antenna's spring.  The spring is inside the black plastic that holds the antenna case to the device.
  • Insert the pointed end of a spudger into the leftmost slit of the antenna case.

  • Push the spudger to the right.

  • Slide the antenna case out slowly or you may lose the antenna's spring. The spring is inside the black plastic that holds the antenna case to the device.

  • Slide the antenna case out of the device.

  • Reinstallation tip: first reassemble the antenna casing (place antenna back into its plastic cover), and then re-insert the entire assembly back into the GPS body.

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Image 1/1: These screws are 10.82 mm long.
  • Remove the two screws on the back of the outer case using a T5 Torx screwdriver.

    • These screws are 10.82 mm long.

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Image 1/2: Starting along the top, separate the front and back of the device by pushing an iPod-opening tool into the crack along each side of the case. Image 2/2: Starting along the top, separate the front and back of the device by pushing an iPod-opening tool into the crack along each side of the case.
  • Gently pull apart the front and back of the device. The front and back are still connected by ribbon cables.

  • Starting along the top, separate the front and back of the device by pushing an iPod-opening tool into the crack along each side of the case.

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Image 1/2: Remove the antenna. Image 2/2: Remove the antenna.
  • Use a spudger to disconnect the yellow antenna wire from the ZIF connector on the back of the motherboard.

  • Remove the antenna.

The antenna ribbon cable has a latch that must be lifted first. It's a light muddy brown color. It flips up and away in the opposite direction of the ribbon cable.

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Image 1/1: Lift the latches on the ribbon cable connectors. All the ribbon cables may have latches.  The right most latch may have a latch that flips in the opposite direction from the others.
  • Do not remove the ribbon cables without lifting the latch or the cable will be damaged.

  • Lift the latches on the ribbon cable connectors. All the ribbon cables may have latches. The right most latch may have a latch that flips in the opposite direction from the others.

  • Gently pull the ribbon cables out of their connectors. They should slide out easily.

  • Do not separate the two halves of the device yet or the on/off cable may be severed.

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Image 1/2: The two halves of the device may now be separated. Image 2/2: The two halves of the device may now be separated.
  • Gently pull the cable for the on/off button straight up to remove it.

  • The two halves of the device may now be separated.

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Image 1/2: Push the screen out of the case after the tabs are loosened. Image 2/2: Slide the screen out of the cover.
  • Push the tabs towards the outside of the case, the tabs are located as shown.

  • Push the screen out of the case after the tabs are loosened.

  • Slide the screen out of the cover.

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Conclusion

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

4 other people completed this guide.

Chris Marzano

Member since: 01/20/2011

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6 Guides authored

Team

Cal Poly, Team 5-22, Amido Winter 2011 Member of Cal Poly, Team 5-22, Amido Winter 2011

CPSU-AMIDO-W11S5G22

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7 Guides authored

One Comment

Great instructions, thank you

I was able to fix my GPS which I thought was headed for the recyclers.

Saved me from purchasing a replacement.

knockout - Reply

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