It looks like your dtb is still loaded from partition.
[0001.413] W> No valid slot number is found in scratch register
[0001.419] W> Return default slot: _a
[0001.422] I> A/B: bin_type (21) slot 0
[0001.426] I> Loading partition kernel-dtb at 0x80000000 from device(0x1)
[0001.440] I> Kernel_dtb @0x80000000
[0001.443] I> Bl_dtb @0x8520f400
What if you do the full flash? Will it work?
full flash work fine.
but in my case, we prefer to flash kernel-dtb or any quick solution.
because full flash is time consuming.
btw, we full flash with cloned system.img .
Also, you can try to remove the tegra186-quill-p3310-1000-c03-00-base.dtb from your Linux_for_Tegra/kernel and run the flash command. Let’s see if there would have error log from flash.sh if the dtb is already gone
It will show missing dtbfile