Use a certified HDMI cable to ensure the signal remains consistent during the verification process.
[NUC] How to Update the HDMI Port Firmware on NUCs with LS PCON nortekhdboxr1hdmifirmware exclusive
This often happens if the file is corrupted. Re-download the firmware and ensure you are using a high-quality USB 2.0 or 3.0 port. Use a certified HDMI cable to ensure the