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The motherboard is a central part in the operation of your Companion remote. If your remote is not working after adjusting the settings and replacing the battery, you may need to replace the motherboard. All you need for this guide is a plastic opening tool and a Phillps #0 screwdriver.
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Hold the remote with the Logitech label toward you.
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Push the battery cover upward.
MY Logitech Harmony smart control does NOT have a battery door. There is absolutely no way to get to any battery HELP
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Use your finger to lift the battery out of the compartment.
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When the battery has lifted, push it up to remove it.
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Remove the two 5.0 mm Phillips #0 screws.
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Use the plastic opening tool to pry open the back cover of the remote.
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Insert the opening tool on each side of the bottom of the remote, and pull up until you hear the cover click open.
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Pry the back cover off by sliding the plastic opening tool down each side.
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Use the plastic opening tool to remove the motherboard.
Pay careful attention to how the battery holders (the wires at the top) are positioned before removing, especially the springs which are designed to push the battery out when lifted, but if not carefully reinstalled will not allow the battery click into place.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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Any source on that motherboard? I've got two dead buttons and replacement remotes are expensive and hard to come by.