Introduction
If your Cisco Meraki MC74-HW does not detect that the phone is resting on its holder or does not automatically hang up, you may need to replace the phone sensor. Here are the steps to fix the problem with a simple change of the phone sensor. Once the back cover is fully detached from the device, a PH0 screw bit and reverse tweezers are needed to replace the phone sensor.
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Extend the stand as far away as possible from the device.
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Remove all four 3 mm Hex 2 screws from the stand.
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Insert a plastic spudger between the back housing cover and the sensor cover piece.
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Work your way slowly around the edges of the device until all the clips have been unclipped.
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Remove the two 1.2 mm screws holding the phone sensor using a Phillips #0 screwdriver.
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Carefully lift the phone sensor to remove it from the device.
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To reassemble your device, follow these instructions in reverse order.
