ROCK64 not booting

[TheGiolly]

Uhh. I have no idea what goes wrong in mounting the root filesystem. A desperate attempt would be replacing in boot/armbianEnv.txt 

rootdev=UUID=XXX

with

rootdev=/dev/mmcblk0p1
or
rootdev=/dev/sda1

I'm still using "stretch-minimal-rock64-0.6.37-221-arm64.img".
The content of boot/extlinux.conf (edited with /dev/sda1) is the following

Code:

timeout 30
default kernel-latest
menu title select kernel

label kernel-latest
   kernel /Image
   initrd /initrd.img
   fdt /dtb
   append rw root=/dev/sda1 rootwait rootfstype=ext4 panic=10 init=/sbin/init coherent_pool=1M ethaddr=${ethaddr} eth1addr=${eth1addr} serial=${serial#} cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory swapaccount=1

label kernel-previous
   kernel /Image.bak
   initrd /initrd.img.bak
   fdt /dtb.bak
   append rw root=/dev/sda1 rootwait rootfstype=ext4 panic=10 init=/sbin/init coherent_pool=1M ethaddr=${ethaddr} eth1addr=${eth1addr} serial=${serial#} cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory swapaccount=1

On the screen i get only the messages with the timestamp at the beginning of the line.
Boot log with /dev/mmcblk0p1 here
Boot log with /dev/sda1 here

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Installed latest u-boot and booted no problem from USB with "Armbian_5.90_Rock64_Debian_stretch_default_4.4.182_desktop".
Boot log here 
Why doesn't it boot from MicroSD?! 
I noticed that all 3 LEDs that are present on the board (DC in, PWR, STBY) stay lit all the time, is it normal?