This is the hardest step because the NVR-108MH-C is sold under multiple brand names. Do not download firmware from random Google Drive links. Use these verified sources:
A: The USB is likely NTFS or exFAT. Reformat to FAT32. Also, ensure the file is not in a folder (root directory only) and has the exact filename required (e.g., nvr_update.bin vs update.bin ). nvr-108mh-c firmware
Then the NVR's HDD activity light went solid. The console log spat out: This is the hardest step because the NVR-108MH-C