Unable to boot ZED Box Orin NX | _ blinking screen

Software
1

Hello,

I have a ZED Box Orin NX 16GB running JetPack 6.2 / L4T 36.4.3.

The device stopped booting. The current behavior during boot is:

NVIDIA logo → black screen → continuously blinking _

During this blinking stage, the power LED remains green. I have tried to do ssh, but it did not work.

I have performed the troubleshooting/recovery procedures described in your documentation My observations are:

  • UEFI is accessible and functioning.

  • The Orin NX 16GB and 16197 MB RAM are detected in UEFI.

  • The internal NVMe SSD is detected by UEFI.

  • I created the official JetPack 6.2 recovery USB using zedbox_all_usb_flash_6.2.sh.

  • The recovery USB is detected by UEFI.

  • Running EFI\BOOT\BOOTAA64.efi manually starts and it displays the following:

    L4TLauncher: Attempting Recovery Boot

    EFI stub: Booting Linux Kernel…

    EFI stub: Using DTB from configuration table

    EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path

    EFI stub: Exiting boot services…

The system then hangs with a blinking _.

I have also tried the live-USB Force Recovery procedure using the USB-A port.

However: lsusb -d ‘0955:’ , never detects the expected Orin NX 16GB recovery device: 0955:7323.

The Micro-USB OTG port also does not enumerate as /dev/ttyACM0 on an Ubuntu 22.04 host. The same host USB port successfully detects other USB devices.

I also noticed that the UEFI RTC had reset to: 01/01/1970

I corrected the date/time, but the boot problem remained.

The device also becomes noticeably warm during these recovery attempts.

Could you please advise whether this indicates a hardware/bootloader issue and provide the recommended procedure for backing up the internal NVMe data before any reflash/recovery? How should I get the ZED Box working again?

I can provide photographs of the UEFI screens, recovery boot output, serial/USB tests, and the recovery USB configuration if required.

Thank you.

2

Hi,

A Linux package update can break one of the drivers our board relies on, so it’s unlikely to be a hardware problem. No need to reflash, your data should be safe with the steps below.

  1. Press Esc repeatedly at the NVIDIA splash screen to open UEFI setup, then go to Device Manager > NVIDIA Configuration > L4T Configuration. Set L4T Boot Mode to Kernel Partition, check that OS chain A status is Normal, then F10 and Y.

  1. Reboot. The box will start in a degraded mode (no camera drivers). If a first boot setup screen shows up, just create a temporary user.

  1. You should be able to read your NVMe from there, so feel free to copy anything important to a USB drive first.

  1. Run sudo dpkg --configure -a

  1. Reboot, go back to L4T Configuration and set L4T Boot Mode back to ExtLinux (F10, Y).

If it still shows a black screen after that, let me know and I’ll send you the next step.

Best,

Tristan Leduc


StereoLabs Support