i make a remote file for the u9 and my Logitech Harmony remote (harmony setup for minix u9 on android)
working keys are:
KEY_1 to 9
KEY_VOLUMEDOWN
KEY_CHANNELDOWN
KEY_CHANNELUP
KEY_UP
KEY_DOWN
KEY_LEFT
KEY_RIGHT
KEY_ENTER
KEY_FORWARD
KEY_REWIND
KEY_FIND
KEY_HOME
KEY_PLAY
KEY_STOP
KEY_POWER
KEY_BACK
KEY_MENU
who is interested can download the file here:
https://1drv.ms/u/s!AsGbD4NPF-BLgzPNw3V8Yw9NEBAd
you need to activate ssh in corelec and instal putty
setup guide in the download map