Plug the USB drive into the (usually white or black, not blue). Press and hold the Power button on the TV (not the remote). While holding the button, plug the TV back in.
Before downloading any files, you must know your TV's specific "Mainboard" or "SoC" model. Using the wrong firmware can permanently "brick" your device. mstar android tv firmware download
This guide explains how to identify your hardware, find the correct software files, and flash them safely. 🛠️ Identifying Your MStar Chipset Plug the USB drive into the (usually white