scala@SCA-SH-VM002:~/work/NVT210_03_11/bsp$ sudo BOARDID=3448 BOARDSKU=0002 FAB=200 FUSELEVEL=fuselevel_production ./flash.sh --no-flash -k DTB jetson-nano-emmc-smpsd mmcblk0p1
[sudo] password for scala: 
###############################################################################
# L4T BSP Information:
# R32 , REVISION: 4.2
###############################################################################
p3448-0000.conf.common--Board ID(3448) version(200) sku(0002) product_id(smpsd)
copying bctfile(/home/scala/work/NVT210_03_11/bsp/bootloader/t210ref/BCT/P3448_A00_4GB_Micron_4GB_lpddr4_204Mhz_P987.cfg)... done.
copying bootloader(/home/scala/work/NVT210_03_11/bsp/bootloader/t210ref/cboot.bin)... done.
copying initrd(/home/scala/work/NVT210_03_11/bsp/bootloader/l4t_initrd.img)... done.
	populating kernel to rootfs... done.
	populating initrd to rootfs... done.
	populating /home/scala/work/NVT210_03_11/bsp/kernel/dtb/smpsd-tegra210-p3448-0002-p3449-0000-a02.dtb to rootfs... done.
Making Boot image... done.
Existing sosfile(/home/scala/work/NVT210_03_11/bsp/bootloader/nvtboot_recovery.bin) reused.
copying tegraboot(/home/scala/work/NVT210_03_11/bsp/bootloader/t210ref/nvtboot.bin)... done.
copying cpu_bootloader(/home/scala/work/NVT210_03_11/bsp/bootloader/t210ref/cboot.bin)... done.
copying bpffile(/home/scala/work/NVT210_03_11/bsp/bootloader/t210ref/sc7entry-firmware.bin)... done.
Existing badpagefile(/home/scala/work/NVT210_03_11/bsp/bootloader/badpage.bin) reused.
copying wb0boot(/home/scala/work/NVT210_03_11/bsp/bootloader/t210ref/warmboot.bin)... done.
Existing tosfile(/home/scala/work/NVT210_03_11/bsp/bootloader/tos-mon-only.img) reused.
Existing eksfile(/home/scala/work/NVT210_03_11/bsp/bootloader/eks.img) reused.
copying dtbfile(/home/scala/work/NVT210_03_11/bsp/kernel/dtb/smpsd-tegra210-p3448-0002-p3449-0000-a02.dtb)... done.
Copying nv_boot_control.conf to rootfs
Existing tbcfile(/home/scala/work/NVT210_03_11/bsp/bootloader/nvtboot_cpu.bin) reused.
copying tbcdtbfile(/home/scala/work/NVT210_03_11/bsp/kernel/dtb/smpsd-tegra210-p3448-0002-p3449-0000-a02.dtb)... done.
copying cfgfile(/home/scala/work/NVT210_03_11/bsp/bootloader/t210ref/cfg/flash_l4t_t210_emmc_p3448.xml) to flash.xml... done.
copying flasher(/home/scala/work/NVT210_03_11/bsp/bootloader/t210ref/cboot.bin)... done.
Existing flashapp(/home/scala/work/NVT210_03_11/bsp/bootloader/tegraflash.py) reused.
*** Signing smpsd-tegra210-p3448-0002-p3449-0000-a02.dtb ***
./tegraflash.py --chip 0x21 --cmd "sign ./signed/smpsd-tegra210-p3448-0002-p3449-0000-a02.dtb.encrypt"  
Welcome to Tegra Flash
version 1.0.0
Type ? or help for help and q or quit to exit
Use ! to execute system commands
 
[   0.0027 ] Generating signature
Error: Not supported
Failed to flash/read t210ref.