root@wirenboard-AWDRLVGD:~# date
Sun 06 Sep 2026 04:56:52 PM MSK
root@wirenboard-AWDRLVGD:~# mmcli -m wbc
  -----------------------------
  General  |              path: /org/freedesktop/ModemManager1/Modem/2
           |         device id: 390a19804bd2eecaa043f287a0b3f400df299713
  -----------------------------
  Hardware |      manufacturer: INCORPORATED
           |             model: A7602E-H
           | firmware revision: A50C4B08A7600M7
           |         supported: gsm-umts
           |           current: gsm-umts
           |      equipment id: 860803067061107
  -----------------------------
  System   |            device: wbc
           |           drivers: option, rndis_host
           |            plugin: simtech
           |      primary port: ttyUSB1
           |             ports: enx020c29a39b6d (net), ttyUSB0 (ignored), ttyUSB1 (at), 
           |                    ttyUSB2 (at), ttyUSB3 (ignored)
  -----------------------------
  Status   |             state: failed
           |     failed reason: sim-missing
           |       power state: on
  -----------------------------
  Modes    |         supported: allowed: any; preferred: none
           |           current: allowed: any; preferred: none
  -----------------------------
  IP       |         supported: ipv4, ipv6, ipv4v6
  -----------------------------
  SIM      |    sim slot paths: slot 1: none (active)
           |                    slot 2: none
root@wirenboard-AWDRLVGD:~# nmcli device status
DEVICE         TYPE      STATE                   CONNECTION 
eth0           ethernet  connected               wb-eth0    
lo             loopback  connected (externally)  lo         
eth1           ethernet  disconnected            --         
wlan0          wifi      disconnected            --         
wlan1          wifi      disconnected            --         
p2p-dev-wlan0  wifi-p2p  disconnected            --         
p2p-dev-wlan1  wifi-p2p  disconnected            --         
dbg0           ethernet  unavailable             --         
ttyUSB1        gsm       unavailable             --         
root@wirenboard-AWDRLVGD:~# journalctl -k --since "-2 hours" --no-pager | grep -Ei 'usb|ttyUSB|wbc|reset|disconnect|power|modem'
root@wirenboard-AWDRLVGD:~# journalctl -u ModemManager --since "-2 hours" --no-pager
-- Journal begins at Thu 2026-08-20 17:50:09 MSK, ends at Sun 2026-09-06 16:57:31 MSK. --
-- No entries --
root@wirenboard-AWDRLVGD:~# wb-diag-collect diag
Start data collecting
Data was collected successfully in 12.93s
root@wirenboard-AWDRLVGD:~# ls -lht /root | head
lrwxrwxrwx 1 root hardware-crypto 14 Aug 20 17:50 /root -> /mnt/data/root
root@wirenboard-AWDRLVGD:~# cat /etc/wirenboard-release
cat: /etc/wirenboard-release: No such file or directory