: The TV might not recognize your USB storage drive. Try swapping to a smaller capacity drive (under 16GB) formatted specifically to FAT32.
Because this universal motherboard is shared by multiple manufacturers, there is no single "universal" file; the is the one precisely tailored to your TV's specific LCD screen panel model and remote control layout. Key Specifications of the HK.T.RT2831P738 Go to product viewer dialog for this item. hktrt2831p738 firmware best
Is the TV currently , or completely dead with a blank screen ? : The TV might not recognize your USB storage drive
Are you experiencing a specific issue like a or a distorted screen after an update? Key Specifications of the HK
I'll search for "HK.T.RT2831P738 Android TV firmware". 0 indicates Android 7.1.1. I'll open it. page provides a firmware download for a Grunhelm TV with Android 7.1.1.