Candyのコマンドがエラーとなる

お世話になります。
CANDY Pi Lite+ D に後述の内容で設定しましたところ、
candy-pi-liteサービスはactiveになっているものの、
いくつかのコマンド(network showなど)でエラーが出ます。

2018年10月3日に類似の記事がございまして、参考にしましたが現象が異なり、
解決にいたっておりません。
お手数をおかけしますが、解決策をご教示いただくことは可能でしょうか。

■現象
sudo candy network show のコマンドに対し、以下のエラーとなります。
[ERROR] CANDY Board Service isn’t running

■ラズパイ
RASPBERRY PI 4B/2GB

■ sudo candy service status 実行後に出力されるログ
● candy-pi-lite.service - CANDY Pi Lite Service, version:10.2.1
Loaded: loaded (/lib/systemd/system/candy-pi-lite.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2021-01-12 18:15:11 JST; 3min 0s ago
Main PID: 4298 (bash)
Tasks: 2 (limit: 3861)
CGroup: /system.slice/candy-pi-lite.service
tq4298 bash /opt/candy-line/candy-pi-lite/start_systemd.sh
mq5412 sleep 30

■OSイメージファイルを利用してセットアップしました。
OSイメージアップデート v12.0.0

■CANDY Pi Liteの機種
CANDY Pi Lite +D

■CANDY Pi Liteとの接続方法
GPIO

■SIMカード
JCI日本通信株式会社
APN名:bmobile.ne.jp

■/opt/candy-line/candy-pi-lite/apn の中身
bmobile.ne.jp

■LEDの状態
LD1は緑色で点滅しています。
LD2は電源ON直後に数秒小さなオレンジ色が着きますがその後消えます。

■/var/log/syslogの中身
Jan 12 18:05:35 raspberrypi start_systemd.sh[569]: 2021年 1月 12日 火曜日 18:05:35 JST
Jan 12 18:05:35 raspberrypi candy-pi-lite: [INFO] Adjusted the current time => 21/01/12,09:05:34 UTC
Jan 12 18:05:35 raspberrypi candy-pi-lite: [INFO] Trying to establish a connection…
Jan 12 18:05:35 raspberrypi dhcpcd[829]: eth0: pid 936 deleted default route via 192.168.1.1
Jan 12 18:05:35 raspberrypi candy-pi-lite: [INFO] Trying to connect…(Trial:1/3, Timeout:5sec)
Jan 12 18:05:35 raspberrypi candy-pi-lite: [INFO] Starting PPP: /dev/ttySC1
Jan 12 18:05:35 raspberrypi kernel: [ 34.202151] PPP generic driver version 2.4.2
Jan 12 18:05:35 raspberrypi pppd[950]: pppd 2.4.7 started by root, uid 0
Jan 12 18:05:36 raspberrypi pppd[950]: Serial connection established.
Jan 12 18:05:36 raspberrypi pppd[950]: Using interface ppp0
Jan 12 18:05:36 raspberrypi pppd[950]: Connect: ppp0 <–> /dev/ttySC1
Jan 12 18:05:37 raspberrypi pppd[950]: CHAP authentication succeeded
Jan 12 18:05:37 raspberrypi pppd[950]: CHAP authentication succeeded
Jan 12 18:05:37 raspberrypi systemd[1]: systemd-fsckd.service: Succeeded.
Jan 12 18:05:40 raspberrypi candy-pi-lite: [ERROR] PPP cannot be online
Jan 12 18:05:40 raspberrypi pppd[950]: Terminating on signal 15
Jan 12 18:05:46 raspberrypi pppd[950]: Connection terminated.
Jan 12 18:05:46 raspberrypi systemd[1]: systemd-hostnamed.service: Succeeded.
Jan 12 18:05:46 raspberrypi pppd[950]: Serial link disconnected.
Jan 12 18:05:47 raspberrypi pppd[950]: Modem hangup
Jan 12 18:05:47 raspberrypi pppd[950]: Exit.
Jan 12 18:05:47 raspberrypi candy-pi-lite: [INFO] start_pppd.sh terminated: Exit Code => 16
Jan 12 18:05:48 raspberrypi candy-pi-lite: [INFO] Trying to connect…(Trial:2/3, Timeout:35sec)
Jan 12 18:05:48 raspberrypi candy-pi-lite: [INFO] Starting PPP: /dev/ttySC1
Jan 12 18:05:48 raspberrypi pppd[1042]: pppd 2.4.7 started by root, uid 0
Jan 12 18:05:50 raspberrypi pppd[1042]: Serial connection established.
Jan 12 18:05:50 raspberrypi pppd[1042]: Using interface ppp0
Jan 12 18:05:50 raspberrypi pppd[1042]: Connect: ppp0 <–> /dev/ttySC1
Jan 12 18:05:51 raspberrypi pppd[1042]: CHAP authentication succeeded
Jan 12 18:05:51 raspberrypi pppd[1042]: CHAP authentication succeeded
Jan 12 18:05:54 raspberrypi systemd[1]: systemd-timedated.service: Succeeded.
Jan 12 18:06:03 raspberrypi kernel: [ 62.229089] nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead.
Jan 12 18:06:24 raspberrypi candy-pi-lite: [ERROR] PPP cannot be online
Jan 12 18:06:24 raspberrypi pppd[1042]: Terminating on signal 15
Jan 12 18:06:30 raspberrypi pppd[1042]: Connection terminated.
Jan 12 18:06:31 raspberrypi pppd[1042]: Serial link disconnected.
Jan 12 18:06:32 raspberrypi pppd[1042]: Modem hangup
Jan 12 18:06:32 raspberrypi pppd[1042]: Exit.
Jan 12 18:06:32 raspberrypi candy-pi-lite: [INFO] start_pppd.sh terminated: Exit Code => 16
Jan 12 18:06:32 raspberrypi candy-pi-lite: [INFO] Trying to connect…(Trial:3/3, Timeout:65sec)
Jan 12 18:06:32 raspberrypi candy-pi-lite: [INFO] Starting PPP: /dev/ttySC1
Jan 12 18:06:33 raspberrypi pppd[1344]: pppd 2.4.7 started by root, uid 0
Jan 12 18:06:34 raspberrypi pppd[1344]: Serial connection established.
Jan 12 18:06:34 raspberrypi pppd[1344]: Using interface ppp0
Jan 12 18:06:34 raspberrypi pppd[1344]: Connect: ppp0 <–> /dev/ttySC1
Jan 12 18:06:35 raspberrypi kernel: [ 94.761297] sc16is7xx spi0.1: ttySC1: Possible RX FIFO overrun: 64
Jan 12 18:06:38 raspberrypi pppd[1344]: CHAP authentication succeeded
Jan 12 18:06:38 raspberrypi pppd[1344]: CHAP authentication succeeded
Jan 12 18:06:39 raspberrypi systemd[1]: Created slice User Slice of UID 1000.
Jan 12 18:06:39 raspberrypi systemd[1]: Starting User Runtime Directory /run/user/1000…
Jan 12 18:06:39 raspberrypi systemd[1]: Started User Runtime Directory /run/user/1000.
Jan 12 18:06:39 raspberrypi systemd[1]: Starting User Manager for UID 1000…
Jan 12 18:06:39 raspberrypi systemd[1398]: Listening on GnuPG network certificate management daemon.
Jan 12 18:06:39 raspberrypi systemd[1398]: Reached target Timers.
Jan 12 18:06:39 raspberrypi systemd[1398]: Listening on GnuPG cryptographic agent and passphrase cache (access for web browsers).
Jan 12 18:06:39 raspberrypi systemd[1398]: Reached target Paths.
Jan 12 18:06:39 raspberrypi systemd[1398]: Listening on GnuPG cryptographic agent (ssh-agent emulation).
Jan 12 18:06:39 raspberrypi systemd[1398]: Listening on GnuPG cryptographic agent and passphrase cache (restricted).
Jan 12 18:06:39 raspberrypi systemd[1398]: Listening on GnuPG cryptographic agent and passphrase cache.
Jan 12 18:06:39 raspberrypi systemd[1398]: Reached target Sockets.
Jan 12 18:06:39 raspberrypi systemd[1398]: Reached target Basic System.
Jan 12 18:06:39 raspberrypi systemd[1398]: Reached target Default.
Jan 12 18:06:39 raspberrypi systemd[1398]: Startup finished in 171ms.
Jan 12 18:06:39 raspberrypi systemd[1]: Started User Manager for UID 1000.
Jan 12 18:06:39 raspberrypi systemd[1]: Started Session 1 of user pi.
Jan 12 18:07:40 raspberrypi candy-pi-lite: [ERROR] PPP cannot be online
Jan 12 18:07:40 raspberrypi pppd[1344]: Terminating on signal 15
Jan 12 18:07:46 raspberrypi pppd[1344]: Connection terminated.
Jan 12 18:07:46 raspberrypi pppd[1344]: Serial link disconnected.
Jan 12 18:07:47 raspberrypi pppd[1344]: Modem hangup
Jan 12 18:07:47 raspberrypi pppd[1344]: Exit.
Jan 12 18:07:47 raspberrypi candy-pi-lite: [INFO] start_pppd.sh terminated: Exit Code => 16
Jan 12 18:07:48 raspberrypi candy-pi-lite: [WARN] Failed to establishing a connection. Retry after 30 seconds…
Jan 12 18:08:21 raspberrypi candy-pi-lite: [ERROR] Modem is missing
Jan 12 18:08:23 raspberrypi candy-pi-lite: [ERROR] Modem is missing
Jan 12 18:08:23 raspberrypi candy-pi-lite: [ERROR] No serialport is available, will restart after 10 seconds
Jan 12 18:08:33 raspberrypi systemd[1]: candy-pi-lite.service: Main process exited, code=exited, status=5/NOTINSTALLED
Jan 12 18:08:33 raspberrypi systemd[1]: candy-pi-lite.service: Failed with result ‘exit-code’.
Jan 12 18:08:33 raspberrypi systemd[1]: candy-pi-lite.service: Service RestartSec=100ms expired, scheduling restart.
Jan 12 18:08:33 raspberrypi systemd[1]: candy-pi-lite.service: Scheduled restart job, restart counter is at 1.
Jan 12 18:08:33 raspberrypi systemd[1]: Stopped CANDY Pi Lite Service, version:10.2.1.
Jan 12 18:08:33 raspberrypi systemd[1]: Started CANDY Pi Lite Service, version:10.2.1.
Jan 12 18:08:33 raspberrypi candy-pi-lite: [INFO] Initializing CANDY Pi Lite Board…
Jan 12 18:08:34 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
Jan 12 18:08:35 raspberrypi candy-pi-lite: [INFO] Result: None
Jan 12 18:08:35 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
Jan 12 18:08:36 raspberrypi candy-pi-lite: [INFO] Result: None
Jan 12 18:08:36 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
Jan 12 18:08:37 raspberrypi candy-pi-lite: [INFO] Result: None
Jan 12 18:08:37 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
Jan 12 18:08:38 raspberrypi candy-pi-lite: [INFO] Result: None
Jan 12 18:08:39 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
Jan 12 18:08:40 raspberrypi candy-pi-lite: [INFO] Result: None
Jan 12 18:08:40 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
Jan 12 18:08:41 raspberrypi candy-pi-lite: [INFO] Result: None
Jan 12 18:08:43 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
Jan 12 18:08:43 raspberrypi candy-pi-lite: [INFO] Result: None
Jan 12 18:08:44 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
Jan 12 18:08:44 raspberrypi candy-pi-lite: [INFO] Result: None
Jan 12 18:08:46 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
Jan 12 18:08:46 raspberrypi candy-pi-lite: [INFO] Result: /dev/ttySC1
Jan 12 18:08:46 raspberrypi candy-pi-lite: [INFO] Modem Serial port: /dev/ttySC1 and AT Serial port: /dev/ttySC1 are selected
Jan 12 18:08:46 raspberrypi candy-pi-lite: [INFO] Initializing modem with baudrate:460800
Jan 12 18:08:47 raspberrypi candy-pi-lite: [INFO] Modem baudrate changed: 115200 => 460800
Jan 12 18:08:47 raspberrypi candy-pi-lite: [INFO] Initialization Done. Modem Serial Port => /dev/ttySC1 Modem baudrate => 460800
Jan 12 18:08:48 raspberrypi candy-pi-lite: [INFO] SIM card state => SIM_STATE_READY
Jan 12 18:08:48 raspberrypi dbus-daemon[487]: [system] Activating via systemd: service name=‘org.freedesktop.timedate1’ unit=‘dbus-org.freedesktop.timedate1.service’ requested by ‘:1.15’ (uid=0 pid=2073 comm="timedatectl set-ntp false ")
Jan 12 18:08:48 raspberrypi systemd[1]: Starting Time & Date Service…
Jan 12 18:08:48 raspberrypi dbus-daemon[487]: [system] Successfully activated service ‘org.freedesktop.timedate1’
Jan 12 18:08:48 raspberrypi systemd[1]: Started Time & Date Service.
Jan 12 18:08:48 raspberrypi systemd-timedated[2074]: Set NTP to disabled
Jan 12 18:08:49 raspberrypi candy-pi-lite: [INFO] EC25 Phone Functionality => Full
Jan 12 18:08:50 raspberrypi candy-pi-lite: [INFO] Saved APN => bmobile.ne.jp
Jan 12 18:08:51 raspberrypi candy-pi-lite: [INFO] Operator => N/A
Jan 12 18:08:51 raspberrypi candy-pi-lite: [INFO] Waiting for network registration => Status:Searching
Jan 12 18:08:53 raspberrypi candy-pi-lite: [INFO] Operator => N/A
Jan 12 18:08:53 raspberrypi candy-pi-lite: [INFO] Waiting for network registration => Status:Searching
Jan 12 18:08:56 raspberrypi candy-pi-lite: [INFO] Operator => NTT DOCOMO NTT DOCOMO
Jan 12 18:08:56 raspberrypi candy-pi-lite: [INFO] OK. Registered in the home ps network
Jan 12 18:08:57 raspberrypi candy-pi-lite: [INFO] Module Model: EC25
Jan 12 18:08:57 raspberrypi candy-pi-lite: [INFO] Network Timezone: 9.0
Jan 12 18:08:57 raspberrypi candy-pi-lite: [INFO] Skipped to adjust time
Jan 12 18:08:57 raspberrypi candy-pi-lite: [INFO] Trying to establish a connection…
Jan 12 18:08:57 raspberrypi start_systemd.sh[1958]: RTNETLINK answers: No such process
Jan 12 18:08:57 raspberrypi candy-pi-lite: [INFO] Trying to connect…(Trial:1/3, Timeout:5sec)
Jan 12 18:08:57 raspberrypi candy-pi-lite: [INFO] Starting PPP: /dev/ttySC1
Jan 12 18:08:57 raspberrypi pppd[2164]: pppd 2.4.7 started by root, uid 0
Jan 12 18:08:58 raspberrypi pppd[2164]: Serial connection established.
Jan 12 18:08:58 raspberrypi pppd[2164]: Using interface ppp0
Jan 12 18:08:58 raspberrypi pppd[2164]: Connect: ppp0 <–> /dev/ttySC1
Jan 12 18:08:59 raspberrypi pppd[2164]: CHAP authentication succeeded
Jan 12 18:08:59 raspberrypi pppd[2164]: CHAP authentication succeeded
Jan 12 18:09:02 raspberrypi candy-pi-lite: [ERROR] PPP cannot be online
Jan 12 18:09:02 raspberrypi pppd[2164]: Terminating on signal 15
Jan 12 18:09:08 raspberrypi pppd[2164]: Connection terminated.
Jan 12 18:09:08 raspberrypi pppd[2164]: Serial link disconnected.
Jan 12 18:09:09 raspberrypi pppd[2164]: Modem hangup
Jan 12 18:09:09 raspberrypi pppd[2164]: Exit.
Jan 12 18:09:09 raspberrypi candy-pi-lite: [INFO] start_pppd.sh terminated: Exit Code => 16
Jan 12 18:09:10 raspberrypi candy-pi-lite: [INFO] Trying to connect…(Trial:2/3, Timeout:35sec)
Jan 12 18:09:10 raspberrypi candy-pi-lite: [INFO] Starting PPP: /dev/ttySC1
Jan 12 18:09:10 raspberrypi pppd[2251]: pppd 2.4.7 started by root, uid 0
Jan 12 18:09:12 raspberrypi pppd[2251]: Serial connection established.
Jan 12 18:09:12 raspberrypi pppd[2251]: Using interface ppp0
Jan 12 18:09:12 raspberrypi pppd[2251]: Connect: ppp0 <–> /dev/ttySC1
Jan 12 18:09:13 raspberrypi pppd[2251]: CHAP authentication succeeded
Jan 12 18:09:13 raspberrypi pppd[2251]: CHAP authentication succeeded
Jan 12 18:09:18 raspberrypi systemd[1]: systemd-timedated.service: Succeeded.
Jan 12 18:09:46 raspberrypi candy-pi-lite: [ERROR] PPP cannot be online
Jan 12 18:09:46 raspberrypi pppd[2251]: Terminating on signal 15
Jan 12 18:09:52 raspberrypi pppd[2251]: Connection terminated.
Jan 12 18:09:53 raspberrypi pppd[2251]: Serial link disconnected.
Jan 12 18:09:54 raspberrypi pppd[2251]: Modem hangup
Jan 12 18:09:54 raspberrypi pppd[2251]: Exit.
Jan 12 18:09:54 raspberrypi candy-pi-lite: [INFO] start_pppd.sh terminated: Exit Code => 16
Jan 12 18:09:55 raspberrypi candy-pi-lite: [INFO] Trying to connect…(Trial:3/3, Timeout:65sec)
Jan 12 18:09:55 raspberrypi candy-pi-lite: [INFO] Starting PPP: /dev/ttySC1
Jan 12 18:09:55 raspberrypi pppd[2553]: pppd 2.4.7 started by root, uid 0
Jan 12 18:09:56 raspberrypi pppd[2553]: Serial connection established.
Jan 12 18:09:56 raspberrypi pppd[2553]: Using interface ppp0
Jan 12 18:09:56 raspberrypi pppd[2553]: Connect: ppp0 <–> /dev/ttySC1
Jan 12 18:09:57 raspberrypi pppd[2553]: CHAP authentication succeeded
Jan 12 18:09:57 raspberrypi pppd[2553]: CHAP authentication succeeded
Jan 12 18:11:02 raspberrypi candy-pi-lite: [ERROR] PPP cannot be online
Jan 12 18:11:02 raspberrypi pppd[2553]: Terminating on signal 15
Jan 12 18:11:08 raspberrypi pppd[2553]: Connection terminated.
Jan 12 18:11:08 raspberrypi pppd[2553]: Serial link disconnected.
Jan 12 18:11:09 raspberrypi pppd[2553]: Modem hangup
Jan 12 18:11:09 raspberrypi pppd[2553]: Exit.
Jan 12 18:11:09 raspberrypi candy-pi-lite: [INFO] start_pppd.sh terminated: Exit Code => 16
Jan 12 18:11:10 raspberrypi candy-pi-lite: [WARN] Failed to establishing a connection. Retry after 30 seconds…

ご質問ありがとうございます。
APNを設定しても接続ができないとのことで、

こちらの内容を拝見する限り、APNファイルの内容を変更していただく必要があると思われます。

APNファイルにAPNだけを記載する場合は、プリセットされたAPNの一覧の値から選んでいただく必要があります。残念ながらbmobile.ne.jpはそのプリセットされたAPNの一覧にはないため、ユーザーIDとパスワードも合わせてご指定いただく必要があります。

ユーザーIDとパスワードを合わせて指定する方法については、以下のページをご覧ください。

dbaba様

早々のご助言まことにありがとうございます!

apn.txt を配置しておりましたが、記述内容を再確認しましたところ、
「user」の指定内容でタイプミスをしておりました。
修正し再起動しましたところ、正常に動作するようになりました。

<追記>
念のため、/opt/candy-line/candy-pi-lite/apn を参照しましたところ、昨日の報告内容と同じ、
bmobile.ne.jp
の一行のみでした。

この度はどうもありがとうございました。
今後ともよろしくお願いいたします。

dbaba様

お世話になります。
たびたび申し訳ございません。再度ご助言をいただけますでしょうか。

前述の設定後、RaspberryPiに音を出すためのボード
「ReSpeaker 2-Mics Pi HAT」
を装着しまして、必要なソフト(下記)をインストールしました。

インストールしたコマンド
$ git clone https://github.com/respeaker/seeed-voicecard.git
$ cd seeed-voicecard
$ sudo ./install.sh --compat-kernel
$ reboot

ところがこのソフトをインストール後、Candyのコマンドがエラーとなります。

syslogを調べましたところ、

16:57:13 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:14 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:14 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:14 raspberrypi candy-pi-lite: [INFO] Result: None

これらのシリアルポートを探し続けて、リトライアウトしておりました。
末尾にsyslogを添付しております。

<補足>
同ソフトをインストール時、raspberrypi-kernel-headers が
1.20201022-1 から 1.20200819-1
にダウングレードされていました。

<質問>
うまくいかない原因は「ReSpeaker 2-Mics Pi HAT」のソフトのインストールが
起因となっているようです。
また、<補足>の raspberrypi-kernel-headers のダウングレードも
影響しているのか判断しかねております。
恐れ入りますが、対処方法をご教示いただくことは可能でしょうか。

<syslogの抜粋>
16:11 は「ReSpeaker 2-Mics Pi HAT」のソフトをインストールする前。
16:57以降は、同ソフトをインストールした後。

16:11:26 raspberrypi candy-pi-lite: [INFO] Initializing CANDY Pi Lite Board…
16:11:27 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:11:28 raspberrypi candy-pi-lite: [INFO] Result: None
16:11:28 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:11:29 raspberrypi candy-pi-lite: [INFO] Result: None
16:11:29 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:11:30 raspberrypi candy-pi-lite: [INFO] Result: None
16:11:30 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:11:31 raspberrypi candy-pi-lite: [INFO] Result: None
16:11:32 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:11:33 raspberrypi candy-pi-lite: [INFO] Result: None
16:11:33 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:11:34 raspberrypi candy-pi-lite: [INFO] Result: None
16:11:35 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:11:36 raspberrypi candy-pi-lite: [INFO] Result: None
16:11:36 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:11:37 raspberrypi candy-pi-lite: [INFO] Result: None
16:11:38 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:11:38 raspberrypi candy-pi-lite: [INFO] Result: /dev/ttySC1
16:11:38 raspberrypi candy-pi-lite: [INFO] Modem Serial port: /dev/ttySC1 and AT Serial port: /dev/ttySC1 are selected
16:11:38 raspberrypi candy-pi-lite: [INFO] Initializing modem with baudrate:460800
16:11:40 raspberrypi candy-pi-lite: [INFO] Modem baudrate changed: 115200 => 460800
16:11:40 raspberrypi candy-pi-lite: [INFO] Initialization Done. Modem Serial Port => /dev/ttySC1 Modem baudrate => 460800
16:11:48 raspberrypi candy-pi-lite: [INFO] SIM card state => SIM_STATE_ABSENT
16:11:48 raspberrypi candy-pi-lite: [INFO] CANDY Pi Lite Board is initialized successfully!
16:11:48 raspberrypi candy-pi-lite: server_main.: [NOTICE] serial_port:/dev/ttySC1 (460800 bps), nic:ppp0
16:11:48 raspberrypi candy-pi-lite: server_main.init: [NOTICE] RESTART_SCHEDULE_CRON=>[] is ignored
16:11:48 raspberrypi candy-pi-lite: server_main.run: [NOTICE] Button Extension is terminated.
16:57:12 raspberrypi candy-pi-lite: [INFO] Initializing CANDY Pi Lite Board…
16:57:13 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:14 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:14 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:14 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:14 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:14 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:14 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:14 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:15 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:15 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:15 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:15 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:16 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:17 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:17 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:17 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:18 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:18 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:18 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:18 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:19 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:19 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:19 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:19 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:20 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:21 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:21 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:21 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:22 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:22 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:22 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:22 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:23 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:23 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:23 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:23 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:24 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:24 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:24 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:25 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:26 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:26 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:26 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:26 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:27 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:27 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:27 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:27 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:28 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:28 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:28 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:29 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:30 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:30 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:30 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:30 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:31 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:31 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:31 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:31 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:32 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:32 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:32 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:33 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:34 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:34 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:34 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:34 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:35 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:35 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:35 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:35 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:36 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:36 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:36 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:37 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:38 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:38 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:38 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:38 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:39 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:39 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:39 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:39 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:40 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:40 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:40 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:41 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:42 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:42 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:42 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:42 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:43 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:43 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:43 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:43 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:44 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:44 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:44 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:45 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:46 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:46 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:46 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:46 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:47 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:47 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:47 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:47 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:48 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:48 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:48 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:49 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:50 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:50 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:50 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:50 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:51 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:57:51 raspberrypi candy-pi-lite: [INFO] Result: None
16:57:51 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:57:51 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:07 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:58:07 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:07 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:58:07 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:08 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:58:08 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:08 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:58:08 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:09 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:58:10 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:10 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:58:10 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:11 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:58:11 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:11 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:58:11 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:12 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:58:12 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:12 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:58:12 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:14 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:58:14 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:14 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:58:14 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:15 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:58:15 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:15 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:58:15 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:16 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:58:16 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:16 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:58:16 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:18 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:58:18 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:18 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:58:18 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:19 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:58:19 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:19 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:58:19 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:20 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 115200…
16:58:20 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:20 raspberrypi candy-pi-lite: [INFO] Looking for a Modem Serial port at Barudrate: 460800…
16:58:20 raspberrypi candy-pi-lite: [INFO] Result: None
16:58:22 raspberrypi candy-pi-lite: [ERROR] No serialport is available, will restart after 10 seconds
16:58:32 raspberrypi systemd[1]: candy-pi-lite.service: Main process exited, code=exited, status=5/NOTINSTALLED
16:58:32 raspberrypi systemd[1]: candy-pi-lite.service: Failed with result ‘exit-code’.
16:58:32 raspberrypi systemd[1]: candy-pi-lite.service: Service RestartSec=100ms expired, scheduling restart.
16:58:32 raspberrypi systemd[1]: candy-pi-lite.service: Scheduled restart job, restart counter is at 1.

dbaba様

お世話になります。
追加情報です。

シリアルポートについて調査をしておりましたところ
/dev/ttySC1 フォルダが存在していないことが分かりました。

対処方法をご教示いただけますと幸いです。
そもそも「ReSpeaker 2-Mics Pi HAT」との共存が難しいでしょうか。

ご質問ありがとうございます。

当該フォルダーはデバイスツリーの設定により有効化されます。ご利用のHATのソフトウェアを追加した際に、/boot/config.txtが変更された可能性があります。

/boot/config.txtの中に、以下のように[all]の部分にdtoverlay=sc16is752-spi0-ce1が定義されているか確認していただき、見当たらない時は追加してください。

[all]
dtoverlay=sc16is752-spi0-ce1

また、念のため以下の定義ファイルが存在するかどうかもご確認ください。

/boot/overlays/sc16is752-spi0-ce1.dtbo

存在しない場合は、一度CNADY Pi Liteのソフトウェアをアンインストールしていただき、再度インストールをしてみていただけますでしょうか(方法はこちらのページをご覧ください)。

当該製品が使うGPIOピンがCANDY Pi Liteのピンと重なる場合は競合してしまいます(電源とGNDを除く)。
上記対処で動作しない場合、下記にてCANDY Pi Liteが使用するGPIOピンの情報がありますので競合していないかどうかご確認いただけますでしょうか。

dbaba様

早々のご回答誠にありがとうございます。

/boot/config.txt を参照しましたところ、存在しておりました。
[all] の内容は下記の通りでした。

#dtoverlay=vc4-fkms-v3d
dtoverlay=sc16is752-spi0-ce1
dtparam=watchdog=on
dtoverlay=i2s-mmap
dtparam=i2s=on

上記の定義ファイルも存在しておりました。

競合していないか確認中です。
分かり次第ご報告させていただきます。

よろしくお願いいたします。

dbaba様

お世話になっております。

GPIOピンが競合していないか確認しましたところ、競合しておりませんでした。

また、CANDY Pi Liteのソフトウェアをアンインストールし、
再度インストールをおこないましたが、結果は変わりませんでした。
( /dev/ttySC1 は存在していない状態のままでございます。)

大変お忙しいところ申し訳ございませんが、ご助言等ございましたら
よろしくお願いいたします。

ご返答ありがとうございます。

GPIO競合がなく、dtboファイルも問題なしとなりますと、当該HATのドライバー設定などと競合している可能性があります。当該HATのドライバーやその設定まではこちらではサポートできませんが、代替案としては、GPIO経由でCANDY Pi Liteを使う代わりに、USB接続を使用することをお試しいただけますでしょうか。

なお、CANDY Pi Lite LTE-MのUSB接続は、一部のカーネルでは動作しません。具体的には現在ご利用中の以下のOSイメージではUSB接続をご利用頂けません。

このため、本投稿時点で最新のv13.0.0か、それ以前のv11.0.0をご利用ください。

動作に関係あるかは不明ですが、v11.0.0のOSイメージでは1.20200819-1のカーネルを使用しています。

以上、お試しいただければと思います。