If your box has an RK3228 (without the A) or an RK3228H , this firmware will not work.
You cannot use Amlogic USB Burning Tool for Rockchip devices. You need or AndroidTool (RKDevTool) .
The solution is almost always a fresh firmware flash. But with dozens of forums filled with broken links, fake “universal” updates, and confusing instructions, finding the can feel impossible.