: Files ending in .part01.rar through .part07.rar indicate that the total firmware size was too large for a single upload and was split into multiple segments. Step 1: Downloading and Extracting Split RAR Files
: Plug the prepared flash drive into a USB port on the television. Download NT72667V01 3840x2160 Nordmende ND55K4000 part07 rar
: Do not turn off the TV or remove the USB until the process hits 100%. The TV will usually restart itself once finished. Troubleshooting : Files ending in
: Ensure you have every segment (e.g., part01 through part07) in the same folder on your PC. Download NT72667V01 3840x2160 Nordmende ND55K4000 part07 rar
: While the TV is unplugged, press and hold the Power button on the TV itself (not the remote).
: Keep holding the button and plug the power cord back in.