Before proceeding with any installation, ensure your smart display or TV box remains continuously plugged into a stable power source. , as doing so can permanently corrupt the device mainboard. Method 1: Installing Over-the-Air (OTA) via Network
Move the downloaded firmware file directly onto the root folder directory of your USB drive. . rtd298xtv001eng 442 kot49h update exclusive
The TV should detect the "RTD298XTV001ENG" file and display an "Upgrading... Do Not Power Off" screen. Before proceeding with any installation, ensure your smart
into the designated service port of the device. Before proceeding with any installation