and your serial number to find the specific firmware version compatible with your hardware.
: Unplug the TV from power. Insert the USB, then plug the TV back in while holding the Power button on the remote until the update screen appears.
: Find the serial number on the sticker at the back of your TV. Visit Hisense Support : Go to the Hisense USA Support or your local country's Hisense support page. Search by Model : Enter
: Insert the USB into the TV's white USB 2.0 port. Navigate to Settings > Support > System Update > Upgrade from USB .
: Copy only the firmware file (often named upgrade_loader.pkg or similar) directly to the root of the USB drive; do not put it inside a folder. Trigger the Update :