Can CE expert help edit dtb.img(from a stick tvbox)

I have a stick box
cpu: s905y2
mem: 1G
emmc: 8G
I has “CoreELEC-Amlogic-s905x2.arm-21.1.1-Omega-Generic.img.gz” , write this img to USB2 disk (its is 32Gb ) ;
serial day i try every dtb file under device_trees,but my box can not display COREELE logo;

need help: some expert would like look an modify mybox dtb.img(this dtb.img is from andriod 9
dtb.img (256 KB)
)