Hello,
I had refer README_massflash.txt in old L4T directory before.
All contents in L4T 35.3.1 like below.
How to massflash Jetson Orin Nano?
apply_binaries.sh odmfuseread.sh
bootloader odmfuse.sh
build_l4t_bup.sh p2822-0000+p2888-0001.conf
clara-agx-xavier-devkit.conf p2822-0000+p2888-0004.conf
e3900-0000+p2888-0004-b00.conf p2822-0000+p2888-0008.conf
flash.sh p2822-0000+p2888-0008-maxn.conf
generate_capsule p2822-0000+p2888-0008-noecc.conf
holoscan-devkit.conf p2972-0000.conf.common
igx-orin-devkit.conf p2972-0000-devkit-maxn.conf
initrdlog p2972-0000-devkit-slvs-ec.conf
jetson_additional_board_spec.cfg p2972.conf
jetson-agx-orin-devkit-as-jao-32gb.conf p3449-0000+p3668-0000-qspi-sd.conf
jetson-agx-orin-devkit-as-nano4gb.conf p3449-0000+p3668-0001-qspi-emmc.conf
jetson-agx-orin-devkit-as-nano8gb.conf p3509-0000+p3668-0000-qspi.conf
jetson-agx-orin-devkit-as-nx-16gb.conf p3509-0000+p3668-0000-qspi-sd.conf
jetson-agx-orin-devkit-as-nx-8gb.conf p3509-0000+p3668-0001-qspi-emmc.conf
jetson-agx-orin-devkit.conf p3509-a02+p3767-0000.conf
jetson-agx-orin-devkit-industrial.conf p3509-a02+p3767-0000-maxn.conf
jetson-agx-orin-devkit-maxn.conf p3668.conf.common
jetson-agx-xavier-devkit.conf p3701.conf.common
jetson-agx-xavier-ind-noecc.conf p3711-0000+p3701-0002.conf
jetson-agx-xavier-industrial.conf p3737-0000+p3701-0000-as-p3701-0004.conf
jetson-agx-xavier-industrial-mxn.conf p3737-0000+p3701-0000-as-p3767-0000.conf
jetson_board_spec.cfg p3737-0000+p3701-0000-as-p3767-0001.conf
jetson-orin-nano-devkit.conf p3737-0000+p3701-0000-as-p3767-0003.conf
jetson-orin-nano-devkit-nvme.conf p3737-0000+p3701-0000-as-p3767-0004.conf
jetson-xavier.conf p3737-0000+p3701-0000.conf
jetson-xavier-maxn.conf p3737-0000+p3701-0000-maxn.conf
jetson-xavier-nx-devkit.conf p3740-0002-b00+p3701-0002.conf
jetson-xavier-nx-devkit-emmc.conf p3740-0002-b01+p3701-0002.conf
jetson-xavier-nx-devkit-qspi.conf p3740-0002-c01+p3701-0008.conf
jetson-xavier-slvs-ec.conf p3767.conf.common
kernel p3768-0000+p3767-0000.conf
l4t_generate_soc_bup.sh p3768-0000+p3767-0000-maxn.conf
l4t_sign_image.sh p3768-0000+p3767-0000-nvme.conf
nvautoflash.sh README_Autoflash.txt
nvmassfusegen.sh rootfs
nvsdkmanager_flash.sh source
nv_tegra source_sync.sh
nv_tools temp_initrdflash
odmfuse.func tools
Thank you.