Plug the power cord back in while on the TV panel (not the remote).
Locate the specific firmware file for your board resolution. You can often find collections of these files on specialist community forums or telegram channels like Hashmi Elecom . Download P65 53V6 1920x1080 Firmware USB rar
How to Download and Install 1920x1080 Firmware via USB If your LED TV is experiencing software glitches, stuck on the logo, or simply needs a resolution update, flashing the firmware is often the best solution. For the universal board (often associated with the TP.VST59S.PB813 Plug the power cord back in while on