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: Use a tool like WinRAR or 7-Zip to extract the contents of the RAR files. Only copy the extracted firmware file (often with a .pkg or .tar.gz extension) to a USB drive.

Alternatively, for older models without internet, the TV may detect the USB file upon booting and prompt you to install it. Specifications Overview Hisense Firmware Downloads & Updates | Support

* COMMERCIAL. * Firmware Download. SUPPORT. Firmware Download. * Company. Hisense-USA

If you have downloaded the RAR files from a third-party source, follow these general steps to update your TV:

To download the firmware for your Hisense UHD Smart 55N3000UW Go to product viewer dialog for this item.

: Ensure the USB drive is formatted to FAT32 . Do not place the file inside any folders; it must be in the root directory.