I have a few HikVision DS-2DE2A404IW-DE3 cameras with different OEM branding so the models show up as: DS-2DE2A404IW-DE3 but also DT2A404 and HNP104-IR/4X. How do I update their firmware? I've tried downloading the latest 5.7.1 firmware but get a firmware mismatch error when trying to upgrade...