When searching for specific software versions like v50, avoid third-party "driver update" sites which often bundle malware. Always follow these steps:

The TV bootloader cannot read NTFS or exFAT formats. You must format your USB drive to FAT32. Step-by-Step Installation Guide

What is the of the hardware device using this software?

Disclaimer: This guide provides general information based on technical search trends. Always refer to the original manufacturer’s documentation for specific installation instructions. If you'd like, I can:

Before attempting to download and flash any firmware file, you must verify your hardware details to avoid permanently damaging ("bricking") your device.

Sometimes the manufacturer provides direct links through their support forums.

Once you have downloaded the firmware file, the next step is the flashing process. This is typically done using a USB drive. The following steps are compiled from the official instructions on the sites listed above.

How is it structured (e.g., frontend vs. backend)?

While holding the power button, plug the TV's power cord back into the wall outlet.

Locate the setup.exe or update.bat file and run it as an administrator.

I can then help you locate the specific or service code for your device.