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Press and hold the on the remote control until you see the message "Software updating..." on the screen.

: Ensure you have downloaded all five parts, including Hisense UHD Smart 50N3000UW part5.rar , and placed them in the same folder on your computer. Extract the Files : Use a tool like WinRAR or 7-Zip .

The software will automatically pull data from all other parts (including part 5) to create a single extracted file.

: Use a USB drive with at least 1GB of space, ideally formatted to FAT32 .

Large firmware files are often split into multiple RAR parts (e.g., .part1.rar through .part5.rar ) to make them easier to download.

Plug the USB drive into the (usually USB 1) on the back of the TV. Go to Settings > Support > System Update . Select Upgrade from USB .

Right-click on ( .part1.rar ) and select "Extract Here".