RockPro64 Official Kernel Support

[rocksa]

Please help me how to install the kernel..
I have found instructions but all i have found is not complete for armbian & rockpro64.
I have downloaded 5.2.9 from kernel.org and compiled with rockpro64 armbian 4.4.18X .config
after that make modules_install / make headers_install / update-initramfs -c -k 5.2.9
and copy dtb-5.2.9-rockchip64 vmlinuz-5.2.9-rockchip64 to /boot
and make symlinks
/boot/dtb -> /boot/dtb-5.2.9-rockchip64
/boot/Image -> vmlinuz-5.2.9-rockchip64

System does not boot
I don't know what else to do
The problem 99% is at uboot.
PLEASE HELP ME