: While holding the button, plug the TV back in. Continue holding for about 5 seconds until the update screen or a flashing LED appears.

Firmware Explained: The Key to Device Security & Performance

: Press and hold the Power button on the TV (not the remote).

: Do not turn off the TV until the progress bar reaches 100%. Interrupting this process can permanently "brick" the device.

: Unplug the TV's power cord from the wall outlet. Insert USB : Plug the drive into the TV's USB port.

The file is one piece of a multi-part archive containing the firmware for the Nordmende ND55K4000

: Place the extracted firmware file (typically ending in .bin or .pkg ) in the root directory of the USB drive, not inside any folders. Standard Update Procedure