The file is one piece of a multi-part archive containing the firmware for the Nordmende ND55K4000
: Press and hold the Power button on the TV (not the remote). Download NT72667V01 3840x2160 Nordmende ND55K4000 part08 rar
: Do not turn off the TV until the progress bar reaches 100%. Interrupting this process can permanently "brick" the device. The file is one piece of a multi-part
: Copy the extracted firmware to an empty USB stick. Download NT72667V01 3840x2160 Nordmende ND55K4000 part08 rar
: While holding the button, plug the TV back in. Continue holding for about 5 seconds until the update screen or a flashing LED appears.
Do you have of this archive, or do you need help finding the rest of the sequence?