Hi @alex.tx,
I was trying an intermediate solution to test my device-tree file, and have managed to compile the .dtb file. However, when i do
setenv fdtfile imx8qm-apalis-v1.1-emli-4.dtb
saveenv
reset
nothing changes i u-boot.
After reboot and going into uboot, the original imxqm-apalis-v1.1-eval.dtb is still listed when doing printenv.
I saw it mentioned as fixed here Problem changing FDTFILE on 3.0b4.254, but it does not work for me.