If you need to reset your LG soundbar, there are a few ways of doing it. First, power the soundbar off and remove the power cord from the outlet.  Once you've done this, wait for 20 seconds. After the 20 seconds have passed, plug everything back in and turn the soundbar on. This should reset the soundbar. If this doesn't work, or if you want to reset your soundbar to its factory settings, the best way is to power the soundbar off and wait for 10 seconds. Once the 10 seconds have passed, the soundbar will reset and return to its original factory settings.