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Q: The subwoofer is flashing red and green - what should I do?

If the indicator light on your LG NB4540 subwoofer is flashing yellow-green , it means it is currently trying to connect to the soundbar. This is normal behavior during pairing. If you see a red light instead, it indicates that the subwoofer is in standby mode or that the connection has failed. In this case: Check that the subwoofer is powered on (light is on) Turn the volume down to minimum (display shows 'VOL MIN') Press and hold the MUTE button for about 3 seconds until 'W RESET' is displayed Press the PAIRING button located on the back of the receiver for more than 5 seconds Unplug and then replug the power cords of the soundbar and subwoofer The pairing will automatically establish upon restart. The light should then become a steady yellow-green (successful connection).

Q: Flashing red light on the main bar and the subwoofer is not working

The red light on the subwoofer indicates a connection problem. Here’s how to restore the connection: Meaning of the lights Flashing yellow-green : connection attempt in progress Solid yellow-green : connection successful Red : the subwoofer is in standby mode or the connection has failed Reconnection procedure Reduce the volume to minimum (display shows "VOL MIN") Press and hold the MUTE button on the remote for about 3 seconds until "W RESET" appears Press and hold the PAIRING button on the back of the wireless receiver for more than 5 seconds Unplug and then reconnect the power cords of the bar and the subwoofer The pairing will be established automatically upon restart. The light on the subwoofer will turn solid yellow-green once the connection is restored.

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