On the Z9X 8K, go to > System > Update > USB Update .
Zidoo is active on their forums (futeko.com or zidoo.tv). Beta firmware is often released there to fix niche bugs before they go live to the general public. Using beta firmware is safe but done at your own risk. z9x 8k firmware
Leo, a home-theater obsessive, tore it open. The new firmware was pre-installed. "Version 3.0.1 – The Horizon," the release notes read. "Expands dynamic range beyond visual spectrum." On the Z9X 8K, go to > System > Update > USB Update