Also, if you install to emmc you might need this u-boot patch to boot armbian. Not sure if the H313/H616 has the same emmc boot problems as H618.
https://github.com/NickAlilovic/build/blob/main/patch/u-boot/u-boot-sunxi/107-sunxi_mmc-dec-f_max-to-12MHz-to-get-emmc-reliable.patch