JetPack Flashing & System Setup

For developers new to NVIDIA Jetson. Juxi Technology Jetson dev kits ship with Ubuntu 22.04 preinstalled — this guide is for reflashing or changing JetPack versions.

1. What is JetPack?

JetPack is NVIDIA's SDK bundle for Jetson platforms, including:

• Ubuntu system image
• CUDA / cuDNN / TensorRT
• Multimedia APIs (L4T)

Version mapping:

Board	Recommended JetPack	OS
Orin NX / Nano	JetPack 6.x	Ubuntu 22.04
Xavier NX / AGX	JetPack 5.x	Ubuntu 20.04

Juxi Technology Jetson Orin NX Super Dev Kit ships with Ubuntu 22.04 (JetPack 6.x ecosystem).

2. Flashing Methods

Method 1: Official Image (Ubuntu Host)

# 1. Download the driver package for your board from NVIDIA
# 2. Extract and enter Linux_for_Tegra
cd Linux_for_Tegra
sudo ./apply_binaries.sh

# 3. Put Jetson into Recovery mode (hold REC + power)
# 4. Flash
sudo ./flash.sh <board-name> mmcblk0p1

Method 2: SDK Manager (recommended for beginners)

1. Install NVIDIA SDK Manager
2. Connect Jetson to PC (Recovery mode)
3. Select board → JetPack version → components (keep CUDA/TensorRT)
4. Wait for flashing + first boot

⚠️ Flashing takes 20-60 minutes. Do NOT unplug during the process.

3. Troubleshooting

Symptom	Check
Can't enter Recovery mode	Hold REC while powering on; verify with lsusb that an NVIDIA device appears
Flashing fails mid-way	Try a different data cable first; disable PC power saving; retry
Black screen after flash	Check display port (DP on Orin); re-enter Recovery and reflash
Version mismatch	Confirm board model matches JetPack version (silk-screen on board)

4. Basic System Setup

4.1 Network & Repos

# Optional: mirror for faster apt
sudo apt update

4.2 Verify GPU Environment

cat /etc/nv_tegra_release
nvcc --version

python3 -c "import torch; print(torch.cuda.is_available())"

If PyTorch is unavailable, see PyTorch Compatibility on Jetson Orin.

4.3 Max Performance Mode (Orin)

sudo nvpmodel -m 0
sudo jetson_clocks

4.4 Expand Root Partition

sudo systemctl enable --now nvresize
# or manually:
sudo resize2fs /dev/nvme0n1p1

5. FAQ

Q: No WiFi after flashing?

A: Orin core boards need an external M.2 WiFi module; check the dual-band antenna connection.

Q: How to enter Recovery mode?

A: Power off → hold REC (or BOOT) → power on / connect Type-C → verify lsusb shows NVIDIA Corp..

Q: Storage requirement?

A: ≥128GB SSD recommended (SD cards are a bottleneck). 256GB is the kit standard.

---

Related Links

• Jetson Orin NX Super Dev Kit
• Edge AI Deployment Intro
• ROS Intro Tutorial

Support

• 📧 Email: support@juxitech.com
• 🌐 Website: www.juxitech.com