How to flash kernel and dtb file on TX2 seperately

Dear sir,
My TX2 board is flashed on Jetpack3.1 images,I need debug dtb and kernel by offen, would you please tell
me how to flash kernel and dtb seperately,or by other good method? Thanks!

hello zhangyuanping83,

you could simply replace /boot/Image and warm-boot the device to get kernel update takes effect,
also, please refer to eLinux wiki page for dtb update,