lakkaTV not loaded 4K TV

Good afternoon. The latest version lakkaTV does not load on a 4K TV. on another TV it works. Is it possible to install openelec on resolution when the system below 4K. I understand that, the OS automatically sets the maximum supported screen resolution.

Thank you for your answer. Sorry for my bad English.

OrangePi Lite

I know on Raspberry Pi, you can set the desired resolution in the config.txt file. Does OrangePi Lite have anything like that?