Hi @ninaH,
So on a clean, non-fused Jetson Nano, if you execute
sudo ./odmfuse.sh -i 0x21 -p -c PKC -k ../nano_priv.pem
pkc_disable fuse is still programmed to 0x1?
Since fuse bits are irreversible, if the device is with pkc_disable=0x1, it cannot be reverted back to 0x0. Would like to confirm if you execute odmfuse.sh on clean, non-fused device.