dune_service_1619_patch.dsf
Should work with these models: tv175h (Pro 4K II), tv175j (Pro 4K Plus II), tv175v (Pro Vision 4K Solo), tv794a (Max Vision 4K), tv994a (Ultra Vision 4K), tv175y (Real Vision 4K Plus), tv494b (Real Vision 4K Duo).
How to use: Run this file from the file browser, e.g. from USB drive. The effect will be preserved even after firmware updates and settings reset.