: Once you download the .zip or .pkg file, extract it if necessary. Move the firmware file (often named upgrade_loader.pkg or similar) to the root directory of the USB drive. Do not put it inside any folders. 4. Perform the Installation Power Off : Turn off the TV and unplug it from the wall.

Use this method if the TV cannot connect to the internet or if you need a specific version rollback (if supported).

Before downloading any files, ensure your USB drive is compatible with Hisense hardware.

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