Unzip the .rar file and place only the upgrade_loader.pkg (or similar firmware file) in the root directory of the USB. Initiate Update: Insert the USB into the TV. Unplug the TV from power.
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Release the button once "Software Update" appears on the screen. Unzip the
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Once you have acquired the correct .pkg or firmware file, follow these steps to update your TV: Use a USB drive formatted to FAT32 .
Reconnect the power while holding the on the remote.
, check Hisense Spain , which specifically lists firmware downloads for the M5500 series.