(e.g., Skyworth, Noblechina, Walton, or local regional brands).
The is a functional but orphaned device. You likely won’t find a “new” firmware version because the factory stopped supporting it years ago. Hk.t.rt2841p638 Firmware
⚫ The TV turns on (backlight is visible), but there is no display or menu. Hk.t.rt2841p638 Firmware
Are you currently facing a or a blank screen during your update? Hk.t.rt2841p638 Firmware