I was able to install Andoird using the "Toolschain" PhenixCard.rar - http://www.orangepi.org/downloadresources/
make sure the SD card is cleaned using Diskpart (for windows)
If you cannot figure it out, it's similar to the Pi PC - https://www.youtube.com/watch?v=0RFhCWmGomE
BTW, the android image is pretty bad.