The HK.T.RT2861V09 is a widely used 4K smart TV motherboard found in various budget LED TV brands like Ferguson, KIVI, and various "no-name" Chinese models. It serves as a replacement or universal driver board for TVs with damaged mainboards, specifically those using 4K panels. Performance and Specifications
Summary
Because HK.T.RT2861V09 is a custom OEM build, search these sources: hk.t.rt2861v09 firmware