Usual technique for working with Allwinner hardware, basically - there should be similar instructions on the English-language linux-sunxi wiki. I'm not aware of

Usual technique for working with Allwinner hardware, basically - there should be similar instructions on the English-language linux-sunxi wiki. I'm not aware of any other device with an R16 chip and the image is usually customised for the specific hardware, but it might be possile to modify it.