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はじめに

Use this guide to replace a broken, cracked, or defective display on your Apple Watch Series 3.

Make sure to update your Apple Watch to watchOS 5 or later (and the paired iPhone to iOS 12 or later) to avoid pairing issues after a display replacement.

Replacing the display can cause issues with Apple Pay. If possible, to reduce the likelihood of problems, delete all your ApplePay account info before the replacement, and then re-enter it with the new display installed.

  1. Prepare an iOpener, and heat the display to soften the adhesive securing it in place.
  2. Always keep your fingers completely clear of the knife. Be careful not to apply too much pressure, as this might cause the knife to slip and cut you, or damage the watch. Place the edge of a curved blade into the thin gap between the display and the outer case.  Start at the short side of the display, closest to the digital crown. Insert only the thin edge of the blade into the gap, and then tilt the blade towards you to widen the gap and lift the display slightly open.
    • Always keep your fingers completely clear of the knife. Be careful not to apply too much pressure, as this might cause the knife to slip and cut you, or damage the watch.

    • Place the edge of a curved blade into the thin gap between the display and the outer case. Start at the short side of the display, closest to the digital crown.

    • Insert only the thin edge of the blade into the gap, and then tilt the blade towards you to widen the gap and lift the display slightly open.

    • Do not insert the knife more than 1/16th of an inch (~2 mm).

  3. Once a small gap has been created with the curved blade, remove the blade and insert the thinner edge of an opening tool into the gap. Push the opening tool into the gap, using your thumb as a pivot to lift the display open a bit farther.
    • Once a small gap has been created with the curved blade, remove the blade and insert the thinner edge of an opening tool into the gap.

    • Push the opening tool into the gap, using your thumb as a pivot to lift the display open a bit farther.

    • Do not try to open the display all the way. The Force Touch gasket may stick to either the display or body, and will tear if forced.

  4. Insert an opening pick under the display and carefully separate the Force Touch gasket from the display. Make sure you get right underneath the display. If the the Force Touch gasket splits when lifting the display, or if you separate the gasket layers, you'll also need to replace the Force Touch gasket itself. Slide the pick around the display to separate the adhesive between the Force Touch gasket and the display.
    • Insert an opening pick under the display and carefully separate the Force Touch gasket from the display.

    • Make sure you get right underneath the display. If the the Force Touch gasket splits when lifting the display, or if you separate the gasket layers, you'll also need to replace the Force Touch gasket itself.

    • Slide the pick around the display to separate the adhesive between the Force Touch gasket and the display.

    • Don't insert the opening pick deeper than 1/16th of an inch (~2 mm).

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  6. To avoid straining the display cables, don't open the display all the way yet. Open the display to about a 45° angle, and use tweezers to peel off the adhesive between the display and the Force Touch gasket. Thread the adhesive around and behind the display cables to get it off completely, and press the gasket down to re-adhere to the case.
    • To avoid straining the display cables, don't open the display all the way yet.

    • Open the display to about a 45° angle, and use tweezers to peel off the adhesive between the display and the Force Touch gasket.

    • Thread the adhesive around and behind the display cables to get it off completely, and press the gasket down to re-adhere to the case.

    • If the Force Touch gasket itself comes loose and won't stick back down, you should replace both the adhesive underneath the gasket and between the gasket and the display.

  7. Remove the Tri-point #000 screw securing the metal cover plate. Use a pair of tweezers to remove the cover plate. First open the plate all the way to unhinge the two flaps.
    • Remove the Tri-point #000 screw securing the metal cover plate.

    • Use a pair of tweezers to remove the cover plate.

    • First open the plate all the way to unhinge the two flaps.

    • Then close it halfway to remove it completely by lifting it out.

  8. On the GPS-only version it is possible to disconnect the battery right after you removed the metal plate. For the LTE version you need to disconnect the force touch gasket and fold it out of the way first, in order to disconnect the battery. Disconnect the battery by prying its connector straight up with the pointy end of a spudger. Bend the connector up slightly to make sure it does not make contact by accident.
    • On the GPS-only version it is possible to disconnect the battery right after you removed the metal plate. For the LTE version you need to disconnect the force touch gasket and fold it out of the way first, in order to disconnect the battery.

    • Disconnect the battery by prying its connector straight up with the pointy end of a spudger.

    • Bend the connector up slightly to make sure it does not make contact by accident.

  9. Use a pair of tweezers to peel off the tape covering the display cable connectors. Start from the bottom right of the tape and carefully work your way towards the connector in the middle.
    • Use a pair of tweezers to peel off the tape covering the display cable connectors.

    • Start from the bottom right of the tape and carefully work your way towards the connector in the middle.

  10. On the leftmost connector is also a conductive foil which will most likely tear when taking off the tape. If it tears grab it from the bottom left to remove it completely. This way the opposed one on the display will stay unharmed. If it tears grab it from the bottom left to remove it completely. This way the opposed one on the display will stay unharmed.
    • On the leftmost connector is also a conductive foil which will most likely tear when taking off the tape.

    • If it tears grab it from the bottom left to remove it completely. This way the opposed one on the display will stay unharmed.

  11. Use the tip of a spudger to unlock the three ZIF connectors by flapping the small black part on the connectors open. Use the tip of a spudger to unlock the three ZIF connectors by flapping the small black part on the connectors open. Use the tip of a spudger to unlock the three ZIF connectors by flapping the small black part on the connectors open.
    • Use the tip of a spudger to unlock the three ZIF connectors by flapping the small black part on the connectors open.

  12. Use a pair of tweezers to disconnect the display flex cables by gently pulling them out. Walking the connectors out in a left-to-right-motion while pulling helps unplugging them. Walking the connectors out in a left-to-right-motion while pulling helps unplugging them.
    • Use a pair of tweezers to disconnect the display flex cables by gently pulling them out.

    • Walking the connectors out in a left-to-right-motion while pulling helps unplugging them.

  13. Remove the display.
    • Remove the display.

    • Before reassembling the new display use the guide linked in the conclusion to apply new adhesive.

まとめ

To reassemble your device, follow these instructions in reverse order. Don’t forget to apply new adhesive before putting the display back on.

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Tobias Isakeit

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