Introduction

The daughterboard is an important piece of the device that houses the charging port. This guide will show you how to remove the daughterboard without damaging it or any other vital components of the device.

If your display glass is cracked, keep further breakage contained and prevent bodily harm during your repair by taping the glass. This also makes a smooth surface allowing the suction cup to bond. Apply a suction cup as close to the SIM slot edge of the phone as you can while avoiding the curved edge.
  • If your display glass is cracked, keep further breakage contained and prevent bodily harm during your repair by taping the glass. This also makes a smooth surface allowing the suction cup to bond.

  • Apply a suction cup as close to the SIM slot edge of the phone as you can while avoiding the curved edge.

    • The suction cup will not make a good seal on the curved portion of the glass.

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Pull up on the suction cup with firm, constant pressure and insert an opening pick between the front panel and rear case. This requires a significant amount of force and patience. If you have trouble, rock the suction cup and screen to weaken the adhesive, or apply heat with an iOpener,  heat gun, or hair dryer. This requires a significant amount of force and patience. If you have trouble, rock the suction cup and screen to weaken the adhesive, or apply heat with an iOpener,  heat gun, or hair dryer.
  • Pull up on the suction cup with firm, constant pressure and insert an opening pick between the front panel and rear case.

  • This requires a significant amount of force and patience. If you have trouble, rock the suction cup and screen to weaken the adhesive, or apply heat with an iOpener, heat gun, or hair dryer.

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In the following steps, extra caution is required in certain areas to avoid damage to the phone: Do not insert the pick more than 0.5 inches into the bottom edge of the phone. If the pick contacts the folded portion of the OLED panel it can damage the display.
  • In the following steps, extra caution is required in certain areas to avoid damage to the phone:

    • Do not insert the pick more than 0.5 inches into the bottom edge of the phone. If the pick contacts the folded portion of the OLED panel it can damage the display.

    • Only make very shallow cuts in the upper left corner, prying deeply can damage the front-facing camera.

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In the following steps, use the flat of the opening pick, rather than a corner, to cut here. This will help prevent inserting the pick too deeply. Slide the opening pick up the right side of the phone to separate the display adhesive.
  • In the following steps, use the flat of the opening pick, rather than a corner, to cut here. This will help prevent inserting the pick too deeply.

  • Slide the opening pick up the right side of the phone to separate the display adhesive.

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Slide the opening pick around the upper-right corner and along the top edge of the phone. Slide the opening pick around the upper-right corner and along the top edge of the phone. Slide the opening pick around the upper-right corner and along the top edge of the phone.
  • Slide the opening pick around the upper-right corner and along the top edge of the phone.

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Slide the pick around the upper-left corner of the phone and down the left edge of the phone. Slide the pick around the upper-left corner of the phone and down the left edge of the phone. Slide the pick around the upper-left corner of the phone and down the left edge of the phone.
  • Slide the pick around the upper-left corner of the phone and down the left edge of the phone.

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Slide the pick around the bottom-left corner and along the bottom of the phone. Slide the pick around the bottom-left corner and along the bottom of the phone. Slide the pick around the bottom-left corner and along the bottom of the phone.
  • Slide the pick around the bottom-left corner and along the bottom of the phone.

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Reinsert the pick at the top edge of the phone and gently pry up the display. If the display doesn't readily lift, do some extra prying to separate the last of the adhesive. The adhesive near the upper speaker is thicker than other places.
  • Reinsert the pick at the top edge of the phone and gently pry up the display.

    • If the display doesn't readily lift, do some extra prying to separate the last of the adhesive. The adhesive near the upper speaker is thicker than other places.

  • Don't try to fully separate the display yet, as a fragile ribbon cable still connects it to the phone's motherboard.

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Carefully lay the display down on top of the rear case as shown, making sure not to crease or tear the display ribbon cable. Remove the two 4.0 mm T5 Torx screws securing the display cable bracket.
  • Carefully lay the display down on top of the rear case as shown, making sure not to crease or tear the display ribbon cable.

  • Remove the two 4.0 mm T5 Torx screws securing the display cable bracket.

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Remove the display cable bracket.
  • Remove the display cable bracket.

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Use the point of a spudger to lift the display cable connector up and out of its socket on the motherboard. To re-attach press connectors like this one, carefully align and press down on one side until it clicks into place, then repeat on the other side. Do not press down on the middle. If the connector is misaligned, the pins can bend, causing permanent damage.
  • Use the point of a spudger to lift the display cable connector up and out of its socket on the motherboard.

  • To re-attach press connectors like this one, carefully align and press down on one side until it clicks into place, then repeat on the other side. Do not press down on the middle. If the connector is misaligned, the pins can bend, causing permanent damage.

  • If any part of your screen doesn't respond to touch after your repair re-seat this connector, making sure it clicks fully into place and that there's no dust or other obstruction in the socket.

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Before installing a new display, it's very important to remove all traces of the old adhesive from the frame, while taking special care to remove any small glass fragments.
  • Before installing a new display, it's very important to remove all traces of the old adhesive from the frame, while taking special care to remove any small glass fragments.

  • After removing all traces of glue and glass from the frame, clean the adhesion areas with high concentration isopropyl alcohol (at least 90%), then apply the new adhesive.

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Remove 11 of the J000 3.5-mm screws by turning the screwdriver counterclockwise. Remove the single T5 4.0-mm screw by turning the screwdriver counterclockwise. Remove the single T5 4.0-mm screw by turning the screwdriver counterclockwise.
  • Remove 11 of the J000 3.5-mm screws by turning the screwdriver counterclockwise.

  • Remove the single T5 4.0-mm screw by turning the screwdriver counterclockwise.

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Pull the black protective sheet off by using the plastic opening tool.
  • Pull the black protective sheet off by using the plastic opening tool.

  • It is normal to hear popping noises as the sheet is detached from the phone body.

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Remove the silver ribbon connector that stretches over the battery by grabbing it with the tweezers and lifting up. Remove the gold ribbon connector by grabbing it with the tweezers and lifting up. Remove the gold ribbon connector by grabbing it with the tweezers and lifting up.
  • Remove the silver ribbon connector that stretches over the battery by grabbing it with the tweezers and lifting up.

  • Remove the gold ribbon connector by grabbing it with the tweezers and lifting up.

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Lift up the battery using the plastic opening tool. The battery is glued to the bottom, removing it will not damage the device. Remove the battery using your hand.
  • Lift up the battery using the plastic opening tool.

  • The battery is glued to the bottom, removing it will not damage the device.

  • Remove the battery using your hand.

  • Do not reuse the battery after it has been removed, as doing so is a potential safety hazard. Replace it with a new battery.

  • To install a new battery:

    • Remove any remaining adhesive from the phone, and clean the glued areas with isopropyl alcohol and a lint-free cloth.

    • Secure the new battery with pre-cut adhesive or double-sided adhesive tape. In order to position it correctly, apply the new adhesive into the phone, not directly onto the battery.

    • Press the battery firmly into place for 5-10 seconds.

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Use the tweezers to pull the white cable on the daughterboard out. Use the tweezers to pull the black wire on the daughterboard out.
  • Use the tweezers to pull the white cable on the daughterboard out.

  • Use the tweezers to pull the black wire on the daughterboard out.

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Remove the J000 2.5mm screw by turning the screwdriver counterclockwise.
  • Remove the J000 2.5mm screw by turning the screwdriver counterclockwise.

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Use the plastic opening tool to lift up and remove the daughterboard. The daughterboard may feel sticky and make a cracking noise.
  • Use the plastic opening tool to lift up and remove the daughterboard.

  • The daughterboard may feel sticky and make a cracking noise.

  • Use your hands to completely remove the daughterboard.

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Use the tweezers to remove the black rectangular box connected to the red wire and the daughterboard. Use the tweezers to remove the black rectangular box connected to the red wire and the daughterboard.
  • Use the tweezers to remove the black rectangular box connected to the red wire and the daughterboard.

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Conclusion

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

Taylor Sanders

Membre depuis le 24/01/2018

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2 tutoriels rédigés

Équipe

Cal Poly, Team S18-G5, Livingston Winter 2018 Membre de l'équipe Cal Poly, Team S18-G5, Livingston Winter 2018

CPSU-LIVINGSTON-W18S18G5

4 membres

6 tutoriels rédigés

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