firmware update for AI box
prepare a 8GB SD card, format to FAT32,
unzip the firmware file into the SD card,
power off the AI box, insert the SD card,
power on ,
there will be a RED LED lit up, wait about 10~18minutes,
there will be a LED blinking, that means firmware update success.
power off the AI box, pull out the SD card, then power on AI box.
