If your TV is connected to the internet, follow these steps to check for official updates directly: How to Update Hisense TV
part3 rar" likely refers to a split-archive firmware update for the Hisense 55N3000UW Download Hisense UHD Smart 55N3000UW part3 rar
To update your television, you should first try the official over-the-air (OTA) method, which is the safest and easiest way to ensure you have the correct software. If your TV is connected to the internet,