FN920C04 auto-connected on Nvidia AGX Orin R36.3

Data structure

$ tree -L 1
.
├── apply_binaries.sh
├── bootloader
├── build_l4t_bup.sh
├── flash.sh
├── generate_capsule
├── ...
├── ...
├── kernel
├── l4t_generate_soc_bup.sh
├── l4t_sign_image.sh
├── l4t_uefi_sign_image.sh
├── ...
├── ...
├── rootfs
├── source
├── Tegra_Software_License_Agreement-Tegra-Linux.txt
└── tools

Copy the data to the rootfs, /etc/NetworkManager/system-connections/internet.nmconnection

[connection]

id=internet

uuid=996797c1-56eb-44aa-b7e2-d405ade10bdf

type=gsm

[gsm]

apn=internet

[serial]

[ppp]

[ipv4]

dns-priority=120

method=auto

route-metric=1050

[ipv6]

addr-gen-mode=stable-privacy

method=auto

[proxy]

Change root.

$ ls -alh /run/dbus/
srw-rw-rw-  1 root root    0 Dec 19 09:53 system_bus_socket

$ sudo mount -t proc /proc ./rootfs/proc
$ sudo mount -t sysfs /sys ./rootfs/sys
$ sudo mount -o bind /dev ./rootfs/dev
$ sudo mount -o bind /dev/pts ./rootfs/dev/pts
// for dbus
$ mkdir ./rootfs/run/dbus
$ sudo mount -o bind /run/dbus ./rootfs/run/dbus      //PC env: ubuntu 22.04, kernel: 6.8.0-65-generic 

$ sudo chroot ./rootfs

//enter simulator 
#nmcli connection reload

Rebuild BSP code

r363

FN920C04 should be auto-connected to the Internet

$ ifconfig wwan0
wwan0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1500
        inet 10.231.60.110  netmask 255.255.255.252  destination 10.231.60.110
        inet6 2001:b400:e2ad:ab1:95f4:6e35:7e1a:4a5e  prefixlen 64  scopeid 0x0<global>
        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 1000  (UNSPEC)
        RX packets 379  bytes 67264 (67.2 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 453  bytes 39083 (39.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        

$ mmcli -m 0
  ----------------------------------
  General  |                   path: /org/freedesktop/ModemManager1/Modem/0
  ----------------------------------
  Hardware |           manufacturer: Telit Cinterion
           |                  model: FN920C04-WW
           |      firmware revision: M0V.060001
           |         carrier config: default
           |           h/w revision: 1.10
  ----------------------------------
  System   |                 device: /sys/devices/platform/bus@0/3610000.usb/usb1/1-4/1-4.2
           |                drivers: qmi_wwan, option
           |                 plugin: telit
           |           primary port: cdc-wdm0
           |                  ports: cdc-wdm0 (qmi), ttyUSB0 (ignored), ttyUSB1 (at),
           |                         ttyUSB2 (ignored), wwan0 (net)
  ----------------------------------
  ----------------------------------
  Status   |                   lock: sim-pin2
           |         unlock retries: sim-pin (3), sim-puk (10), sim-pin2 (3), sim-puk2 (10)
           |                  state: connected
           |            power state: on
           |            access tech: lte
           |         signal quality: 100% (recent)
  ----------------------------------
  ----------------------------------
  3GPP EPS |   ue mode of operation: csps-2
           |    initial bearer path: /org/freedesktop/ModemManager1/Bearer/0
           | initial bearer ip type: ipv4v6
  ----------------------------------
  SIM      |       primary sim path: /org/freedesktop/ModemManager1/SIM/0
           |         sim slot paths: slot 1: /org/freedesktop/ModemManager1/SIM/0 (active)
           |                         slot 2: none
  ----------------------------------
  Bearer   |                  paths: /org/freedesktop/ModemManager1/Bearer/1



$ mmcli -b 1
  ------------------------------------
  General            |           path: /org/freedesktop/ModemManager1/Bearer/1
                     |           type: default
  ------------------------------------
  Status             |      connected: yes
                     |      suspended: no
                     |    multiplexed: no
                     |      interface: wwan0
                     |     ip timeout: 20
  ------------------------------------
  Properties         |            apn: internet
                     |        roaming: allowed
                     |        ip type: ipv4v6
                     |   allowed-auth: none, pap, chap, mschap, mschapv2, eap
  ------------------------------------
  IPv4 configuration |         method: static
                     |        address: 10.231.60.110
                     |         prefix: 30
                     |        gateway: 10.231.60.109
                     |            dns: 168.95.1.1, 168.95.192.1
                     |            mtu: 1500
  ------------------------------------
  IPv6 configuration |         method: static
                     |        address: 2001:b400:e2ad:ab1:95f4:6e35:7e1a:4a5e
                     |         prefix: 64
                     |        gateway: 2001:b400:e2ad:ab1:f9db:c24f:25cc:9eb2
                     |            dns: 2001:b000:168::1, 2001:b000:168::2
                     |            mtu: 1500
  ------------------------------------
  Statistics         |     start date: 2025-12-19T07:08:00Z
                     |       duration: 7290
                     |       bytes rx: 71708
                     |       bytes tx: 40369
                     |       attempts: 1
                     | total-duration: 7290
                     | total-bytes rx: 71708
                     | total-bytes tx: 40369