Check the firmware version of the SVEN SB-2700DA soundbar: 1) Put the soundbar into standby mode (a dot will be displayed on the screen). 2) Point the remote control at the soundbar and quickly press the buttons in the following sequence: ">>", "<<", "+". 3) The main firmware version will be displayed as Mxxx. Firmware update instructions for the SVEN SB-2700DA soundbar To update the firmware, follow these steps: 1) Copy the firmware file XXXXXX.ufw to a USB flash drive. The USB drive must be formatted in FAT32, and only the firmware file should be on the USB drive; 2) Put the soundbar into standby mode (a dot will be displayed on the screen); 3) Insert the USB flash drive into the soundbar's USB port; 4) Point the remote control at the soundbar and quickly press the buttons in the following sequence: ">>", "<<", "BT" (the Bluetooth symbol); 5) The display will show "UPG-M". The firmware update is in progress; do not remove the USB flash drive; 6) After the update is complete, the display will show "U OK"; 7) Turn off the soundbar (unplug the power cable); 8) Remove the USB flash drive from the USB port; 9) Turn the soundbar back on; 10) The update is complete.