This method is commonly used for Amlogic-based boxes. A Dutch blog documented the process when successfully flashing an MXQ TV Box using firmware from Entertainment Box:

Even with the correct firmware, problems can arise. Here are some common issues and how to address them.

If you want to tailor this upgrade specifically to your current setup, tell me: What is the of your Android TV box? What processor (chipset) does your device use?

Missing WorldCup Device drivers. Fix: Install the Amlogic USB Burning Tool drivers manually from C:\Program Files\Amlogic\USB_Burning_Tool\WorldCup_Driver .

You will usually need a standard USB-to-USB (Male to Male) cable, a MicroSD card, or a formatted USB flash drive, along with a pin or paperclip to press the recovery button. Step-by-Step Guide: How to Install EBox Android Firmware

Interruping power or data transmission while writing to the device's eMMC storage will completely corrupt the partition table.

If you own an EntertainmentBox (EBox) device, keeping your system software updated is the most effective way to restore speed, patch security vulnerabilities, and unlock new streaming capabilities. This comprehensive guide covers everything you need to know about tracking down and installing the hottest, most stable Android firmware downloads for your EBox media player. Why You Need to Update Your EBox Firmware