Zidoo has released differential packages via OTA for their model UHD8000.

Dear Users, We have identified a regression issue in the latest firmware version v1.1.80, so we have decided to temporarily pause its rollout. Our team is working diligently to pinpoint and verify the solution to ensure a stable and reliable user experience. A new firmware version will be released soon. We sincerely apologize for any … Read more
The full firmware of Z3000 Pro is not available for download. Each upgrade will be an online upgrade in the form of a differential package.