Introduction

Nokia Lumia 720 - How to disassemble the device and replace the Earpiece / Speaker.


Video Overview

Remove the SIM card tray and the memory card try. Use a screwdriver Torx T2 and remove the screw under the SIM card tray. Use plastic tools and start the separating the back cover from the top side.
  • Remove the SIM card tray and the memory card try.

  • Use a screwdriver Torx T2 and remove the screw under the SIM card tray.

  • Use plastic tools and start the separating the back cover from the top side.

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Be careful with the volume buttons. Be careful with the volume buttons. Be careful with the volume buttons.
  • Be careful with the volume buttons.

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Remove the 3x Torx T4 screws. Buzzer / Loudspeacker Buzzer / Loudspeacker
  • Remove the 3x Torx T4 screws.

  • Buzzer / Loudspeacker

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Disconnect the battery flex cable. Unstick the metal foil from the logic board. Use a plastic tool with a thin tip and unstuck the battery from the middle frame.
  • Disconnect the battery flex cable.

  • Unstick the metal foil from the logic board.

  • Use a plastic tool with a thin tip and unstuck the battery from the middle frame.

  • Battery - BP-4GWA, 2000mAh, 3.7V, 7.4Vh

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Disconnect the Antenna cable from the Logic board and from the Charging Dock board and remove it. Disconnect the Antenna cable from the Logic board and from the Charging Dock board and remove it. Disconnect the Antenna cable from the Logic board and from the Charging Dock board and remove it.
  • Disconnect the Antenna cable from the Logic board and from the Charging Dock board and remove it.

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Disconnect the Volume, Power and camera buttons flex cable. Remove the 4x Torx T4 screws. Slightly lift the board
  • Disconnect the Volume, Power and camera buttons flex cable.

  • Remove the 4x Torx T4 screws.

  • Slightly lift the board

  • Slowly and gently unstuck the light sensor from the middle frame.

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Disconnect the Display Assembly flex cable. Disconnect the Charging Dock Board flex cable. Remove the Main board.
  • Disconnect the Display Assembly flex cable.

  • Disconnect the Charging Dock Board flex cable.

  • Remove the Main board.

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Use a tool with a sharp point and carefully unstuck the earpiece. Use a tool with a sharp point and carefully unstuck the earpiece.
  • Use a tool with a sharp point and carefully unstuck the earpiece.

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Conclusion

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

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