Well, I just burn the security mode (odm_production_mode) fuse using:
‘sudo ./odmfuse.sh -i 0x19 -p -k RSA_Key.pem -S SBK.txt jetson-agx-xavier-devkit’
And flashed it using:
‘sudo ./flash.sh -u RSA_Key.pem -v SBK.txt --user_key User_Key.txt jetson-agx-xavier-devkit mmcblk0p1’
The Jetson AGX Xavier is doing the same exact things as the Jetson Xavier NX up to this point. It frozen on the Nvidia screen.

So now what are the next steps?..