Samsung HW-F Series How To Reset page 3

Initialization method WAM350/550/750
1. Speaker should be plugged in and not playing music.
2. Press and hold the Internet Radio button
on the top panel for 5 seconds until you hear a beep.
3. Touch button of the Wireless Audio Multi-room will be blinking 2 times.
4. Press and hold the Internet Radio button
to reboot your Wireless Audio Multi-room.
5. Initialization complete.
Initialization method WAM1500/3500/5500
1. Speaker should be plugged in and not playing music.
2. Press and hold the "+" and "-" button for 10 seconds.
3. The speaker will reboot automatically.
4. Initialization complete.
How to reset Multi-Room speakers
and the Mute button
for more 5 seconds