RetroTINK-4K Custom EDID Instructions

The RT4K normally loads its default EDID for the HDMI® input port unless the file ‘edid.bin’ is present in the root of the SD card.

The 'edid.bin' should be a direct binary dump of a 256-byte EDID structure. You can use a tool such as:

https://www.analogway.com/emea/products/software-tools/aw-edid-editor/

or

https://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU

to generate a custom EDID in this format.