Black screen after LibreElec logo

    I downloaded LibreELEC-RPi4.arm-10.0.0.img and installed it on my RPi4. I plugged it to the 4K TV and the image went black right after showing the LibreElec logo.

    I guess it has something to do with the default resolution, since I plugged it later to a FullHD TV (with no 4k) and it worked fine.

    It really doesn't have 4K native support?

    Have you experimented with the 4K60 enable options? .. If those are set and the TV supports 4K it will try to use them, and then we often see issues with cheaper cables.