How to flash the Orin NX 16GB

I falsh the orin nx 16GB by using officially provided methods
sudo ./tools/kernel_flash/l4t_initrd_flash.sh --external-device nvme0n1p1 -c tools/kernel_flash/flash_l4t_external.xml -p " -c bootloader/t186ref/cfg/flash_t234_qspi.xml " --showlogs --network usb0 jetson-orin-nano-devkit internal

But when I checked the memory, I found that it was only 8GB

can you give me some suggest

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.
Thanks

which jetpack release ? which carrier board? devkit? custom board?