For those who do not own an expensive USB programmer tool (like the CH341A), you can purchase affordable, pre-flashed memory chips online. E-commerce platforms offer ready-to-solder components like the Ic Eprom Firmware Set Top Box ALDO STB 03

Use a free Play Store app like or AIDA64 to identify the chipset (e.g., Amlogic, Rockchip, Allwinner).

This is the easiest method if your STB supports internet connectivity.