Use FAT32 formatting. A 4GB or 8GB drive is usually best for older smart devices.
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
If you are looking for TV firmware, don't just search the model name. Open the back of the device and look for the Main Board Number (e.g., TP.MS338.PB801). Searching for this number + "firmware" is much more reliable than searching "Technostar Rio." Use FAT32 formatting
To help you "make a paper" (which I'm assuming means a guide or report on how to handle this file), 1. Where to find the download Boot into Recovery: Unplug the power cord
If you are writing a guide on how to use the download, follow these standard steps:
Use a tool like 7-Zip or WinRAR to extract the contents.
What are you trying to fix (e.g., stuck on logo, black screen)?