Jetson Orin Nano Boot Failure and Data Recovery

Issue Overview

Users of the Nvidia Jetson Orin Nano 8GB developer version are experiencing boot failures after several months of routine use. The system freezes on the NVIDIA logo with the message "Enter to continue boot". This issue appears to be related to bootloader corruption, which prevents the device from booting properly. The problem is particularly concerning as it can result in the loss of several months’ worth of work stored on the device’s SSD.

Key points:

• Device: Jetson Orin Nano 8GB developer version
• Operating System: Flashed with Jetpack 6.0 DP on NVMe using SDK manager
• Symptom: Freezes on NVIDIA logo during boot
• Duration: Occurs after approximately 4 months of use
• Data loss: Risk of losing 3 months of work stored on the SSD

Possible Causes

1. Bootloader corruption: The most likely cause appears to be corruption of the bootloader stored in the QSPI memory of the module.

2. Incompatibility between bootloader versions: The issue may be exacerbated by updates to the bootloader, causing incompatibility with older SSD installations.

3. Filesystem corruption: Accidental filesystem corruption could prevent successful booting, even with a functioning bootloader.

4. Hardware failure: Although less likely, there could be a hardware issue with the QSPI memory or other components.

5. SDK Manager issues: Some users report difficulties with the SDK Manager, which could lead to improper flashing or configuration.

Troubleshooting Steps, Solutions & Fixes

1. Use a TTL cable for debugging:

   • Obtain a TTL to USB cable for console logging.
   • Follow the guide at JetsonHacks for setting up a Serial Debug Console.
   • This will provide more precise information for diagnosing the issue.

2. Reflash the system:

   • Use SDK Manager to reflash both the SSD and QSPI memory.
   • Note: This may not work if there have been bootloader updates since the original installation.

3. Data recovery:

   • If possible, connect the SSD to a Linux system using a USB to SSD adapter.
   • Identify the device using the command:

     lsblk -f
     

   • Mount the partition and copy the data to a safe location.

4. Backup strategy:

   • Implement a regular backup routine using tools like rsync to prevent data loss in the future.
   • Example rsync command:

     rsync -avz /path/to/source/ /path/to/destination/
     

5. Check for filesystem corruption:

   • If able to access the SSD on another system, run a filesystem check:

     fsck /dev/sdX#
     

   Replace sdX# with the appropriate device identifier.

6. Update SDK Manager:

   • Ensure you’re using the latest version of SDK Manager.
   • Check for any known issues or bugs related to your specific Jetpack version.

7. Consider using SD card image:

   • For simpler setups, consider using the SD card image version of Jetson Orin Nano.
   • This may provide a more stable experience for some users.

8. Report issues to NVIDIA:

   • If the problem persists, gather all relevant logs and information.
   • Report the issue to NVIDIA support or through their developer forums for further assistance and to help improve future versions.

Unresolved aspects:

• The exact cause of bootloader corruption is still unclear and may require further investigation by NVIDIA.
• A more robust solution for preventing bootloader issues in long-term use is needed.
• Improved documentation and tools for data recovery in case of boot failures would be beneficial for users.