Hello there sabbel! To pair your subwoofer with the Samsung HW-S700D soundbar, start by plugging in both the soundbar and subwoofer and turning the soundbar on, these devices are designed to pair automatically. When connected, the LED on the back of the subwoofer will turn solid blue.
If it doesn’t connect automatically, you can pair it manually:
• Turn OFF the soundbar
• Press and hold the ID SET button on the back of the subwoofer for about 5 seconds until the LED blinks blue
• On the soundbar remote, press and hold the Up button for about 5 seconds
• The soundbar will power on and complete pairing (solid blue light confirms connection)
If you’re still having trouble, try placing both units closer together, power cycling them, or checking for interference.
~ Samsung Solutions