Download the firmware image file of the device you want to flash or upgrade
Download Amlogic USB burning Tool from list below (latest version is preferred)
Amlogic USB burning Tool V18.104.22.168
After download, extract the zip file and launch USB Burning Tool.exe
Power off device and connect to PC
Use pin to press down the recovery button on the device then also press power button
USB burning Tool will detect the device.
Click File and select import image
Navigate to the folder containing the image file of the device you want to flash or upgrade
The tool will analyze the file an show you if it’s OK for flash.
You can now tick flashing configurations (Erase Flash or Reset after success)
Click Start button to start the flashing or updating process
This process will take several minutes to complete
When its complete, disconnect device and boot