The built-in OTA server may be offline. Follow the USB method above using a manually downloaded file.
Your TV will restart automatically once the update is complete. Do not turn off the TV during this process. Method 2: Updating via USB hitachi 50hyt62u software update updated
The manual OTA method described above is the primary way to update the Hitachi 50HYT62U. However, if the automatic method fails or you have problems with the broadcaster's signal, updating via USB is a reliable alternative. The built-in OTA server may be offline