After commenting out eeprom lines, my flash can now complete, but the board won’t come up, uart shows it gets into a loop:
Jetson UEFI firmware (version r34.1-975eef6 built on 2022-04-06T11:46:12-07:00)
Press ESCAPE for boot options ** WARNING: Test Key is used. **
......
ASSERT [L4TLauncher] /dvs/git/dirty/git-master_linux/out/nvidia/bootloader/uefi/Jetson_RELEASE/edk2/MdePkg/Library/BaseLib/String.c(37): String != ((void *) 0)
Resetting the system in 5 seconds.