Specifications

5. Connect the USB storage device to the USB port of the unit.
If you connect a USB hard disk drive to the USB port of the unit, we
recommend that you use its AC adapter to power it.
If the USB storage device has been partitioned, each section will be
treated as an independent device.
6. After pressing RCV, press HOME on the remote controller.
The HOME menu is displayed on the TV screen.
7. With the cursors, select "Setup" - "7. Hardware Setup" - "Firmware
Update" - "Update via USB", and then press ENTER.
If "Firmware Update" is grayed out and cannot be selected, wait for a
while until it starts up.
You will not be able to select "Update via USB" if there is nothing to
update.
8. Press ENTER with "Update" selected to start update.
During the update, the TV screen may go black depending on the