Hi, thanks for the new link. I also find old sources, and tried to compile, but failed because of missing aarch64 toolchain in the old sources.
I find aarch64 toolchain from pine64 sources, copied into old sources, and compiled BPI-M64 Android 6.0.1 succesfully.
And then, I uploaded my sources to Gdrive: https://drive.google.com/open?id=0B_h6Fwa1Fb9rajBBN183dEwzMEE
Unfortunately, these sources does not include Google apps ( Such as Google play store ). I have integrated Opengapps into Nanopi android SDK before, and I think I can do it for BPI-M64 too. But why your default SDK doesn't have it?
Can you please explain ?