hello mrcloud,
it looks those 4 magic bytes did not shown.
may I double confirm the script file you’re used to generate EKS image.
for instance, did you download [Driver Package (BSP) Sources] via Jetson Linux 35.4.1 | NVIDIA Developer.
and… you should execute this file to create a customize EKS image.
$public_sources/r35.4.1/Linux_for_Tegra/source/public/atf_and_optee/optee/samples/hwkey-agent/host/tool/gen_ekb/gen_ekb.py