Introduction

Regain Bluetooth functionality by replacing the Bluetooth board.

Lay the iMac display-side down on a flat surface.
  • Lay the iMac display-side down on a flat surface.

  • Loosen the three Phillips screws securing the rear panel to the iMac.

  • These screws are captive in the iMac. The center screw will stop turning after about 3.5 turns and the outer screws will stop turning after about 5.5 turns. Do not try to remove these screws from your iMac.

Some models (with light sensor) have only the two outboard screws.

Robert Huber - Reply

Lift the rear panel slightly near the bottom of the iMac. Pull the rear panel toward yourself and remove it from the iMac.
  • Lift the rear panel slightly near the bottom of the iMac.

  • Pull the rear panel toward yourself and remove it from the iMac.

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Remove the two 5.5 mm T6 Torx screws securing the Bluetooth board to the logic board.
  • Remove the two 5.5 mm T6 Torx screws securing the Bluetooth board to the logic board.

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Bend a paper clip into a hook and use it to pull the Bluetooth board up off its socket on the logic board. Bend a paper clip into a hook and use it to pull the Bluetooth board up off its socket on the logic board.
  • Bend a paper clip into a hook and use it to pull the Bluetooth board up off its socket on the logic board.

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Use a spudger to pry the Bluetooth antenna connector up off the Bluetooth board.
  • Use a spudger to pry the Bluetooth antenna connector up off the Bluetooth board.

No visible wire with connector

Joe Cardoza - Reply

Conclusion

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

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