Reflash NRU-220S with JetPack 5.1.1

Preparation

• Prepare a host computer that meets the following system requirements

  • x86 architecture

  • Ubuntu 20.04

  • 8GB Memory

  • 120GB Storage

• Refer to the following link to create a L4T folder for JetPack 5.1.1 on the host computer https://neousys.gitbook.io/nru-series/pcie-nx150/software-related/create-a-pure-jetpack-5.1.1-environment

• Download the NRU-220S tarball from NRU NAS [link]. You may contact your sales representative to get the password.

• Decompressed the tarbll in your L4T folder

# L4T=/e_nvme/JP511_NRU-230V_240S/Linux_for_Tegra
cd $L4T
sudo tar zxvf nru220_JP511_ES2_2023-09-18_1229.tar.gz

• Download the system.img from NRU NAS, and put it into $L4T/bootloader

Flash

• Boot NRU-220S into recovery mode by

  • Hold down the recovery button abve the power button

  • Press the power button

  • Wait for 5 second

  • Release the recovery button

• Connect the host machine with NRU-220S via a USB type A (on Host) to type C (on NRU-220s) cable

• If NRU-220S is ready to be flashed, you will see AGX Orin listed as a USB device after entering lsusb

Bus 001 Device 079: ID 0955:7223 NVIDIA Corp.

• Connect the host computer and NRU-220S with USB to Type C Cable

• On the host computer

cd $L4T
sudo ./flash_JAO32GB_JAO64GB_pinmux.sh