(often a specific Smart TV model or generic Android device) can be tricky because official links are often hosted on niche support forums or manufacturer-specific portals that change frequently.
Use a tool like 7-Zip or WinRAR to extract the contents.
Place the extracted .bin or .img file directly in the root directory (don't put it in a folder). Boot into Recovery: Unplug the power cord. Insert the USB. Hold the Power button on the device (not the remote). Download TECHNOSTAR RIO SMART rar
Technostar is a brand often associated with regional retailers (like Sharaf DG or European distributors).
Do you have the from the internal hardware? (often a specific Smart TV model or generic
Searching for specific firmware or ".rar" software files for a Technostar Rio Smart
Plug the power back in while holding the button until the "Software Updating" screen appears. To give you more specific help, could you tell me: Boot into Recovery: Unplug the power cord
Use FAT32 formatting. A 4GB or 8GB drive is usually best for older smart devices.