Six Fab Base Hat Modem Hangup

Raspberry Pi Network HATs 3G/4G&LTE Base HAT
,
1

I am using a six fab base hat with Verizon, but the modem keeps hanging up. What is going on?

pi@weatherStation:~ $ sudo pon
pppd options in effect:
debug # (from /etc/ppp/peers/provider)
updetach # (from /etc/ppp/peers/provider)
persist # (from /etc/ppp/peers/provider)
dump # (from /etc/ppp/peers/provider)
noauth # (from /etc/ppp/peers/provider)
remotename 3gppp # (from /etc/ppp/peers/provider)
/dev/ttyUSB4 # (from /etc/ppp/peers/provider)
115200 # (from /etc/ppp/peers/provider)
lock # (from /etc/ppp/peers/provider)
connect chat -s -v -f /etc/chatscripts/chat-connect -T vzwinternet # (from /etc/ppp/peers/provider)
disconnect chat -s -v -f /etc/chatscripts/chat-disconnect # (from /etc/ppp/peers/provider)
nocrtscts # (from /etc/ppp/peers/provider)
modem # (from /etc/ppp/peers/provider)
asyncmap 0 # (from /etc/ppp/options)
lcp-echo-failure 4 # (from /etc/ppp/options)
lcp-echo-interval 30 # (from /etc/ppp/options)
hide-password # (from /etc/ppp/peers/provider)
novj # (from /etc/ppp/peers/provider)
novjccomp # (from /etc/ppp/peers/provider)
ipcp-accept-local # (from /etc/ppp/peers/provider)
ipcp-accept-remote # (from /etc/ppp/peers/provider)
ipparam 3gppp # (from /etc/ppp/peers/provider)
noipdefault # (from /etc/ppp/peers/provider)
ipcp-max-failure 30 # (from /etc/ppp/peers/provider)
defaultroute # (from /etc/ppp/peers/provider)
usepeerdns # (from /etc/ppp/peers/provider)
noccp # (from /etc/ppp/peers/provider)
noipx # (from /etc/ppp/options)
abort on (BUSY)
abort on (NO CARRIER)
abort on (NO DIALTONE)
abort on (ERROR)
abort on (NO ANSWER)
timeout set to 30 seconds
send (AT^M)
expect (OK)
^M
OK
– got it

send (ATE0^M)
expect (OK)
^M
^M
OK
– got it

send (ATI;+CSQ;+COPS?;+CGREG?;&D2^M)
expect (OK)
^M
^M
Quectel^M
EC25^M
Revision: EC25AFXGAR07A03M1G^M
^M
+CSQ: 22,99^M
^M
+COPS: 0,0,"Verizon ",7^M
^M
+CGREG: 0,1^M
^M
OK
– got it

send (AT+CGDCONT=1,“IP”,“vzwinternet”,0,0^M)
expect (OK)
^M
^M
OK
– got it

send (ATD*99#^M)
expect (CONNECT)
^M
^M
CONNECT
– got it

Script chat -s -v -f /etc/chatscripts/chat-connect -T vzwinternet finished (pid 7978), status = 0x0
Serial connection established.
using channel 44
Using interface ppp0
Connect: ppp0 <–> /dev/ttyUSB4
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xb60a49b0> ]
rcvd [LCP ConfReq id=0x81 <asyncmap 0x0> <magic 0x552b9745> ]
No auth is possible
sent [LCP ConfRej id=0x81 ]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0xb60a49b0> ]
rcvd [LCP ConfReq id=0x82 <asyncmap 0x0> <magic 0x552b9745> ]
sent [LCP ConfAck id=0x82 <asyncmap 0x0> <magic 0x552b9745> ]
sent [LCP EchoReq id=0x0 magic=0xb60a49b0]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
rcvd [LCP DiscReq id=0x83 magic=0x552b9745]
rcvd [LCP EchoRep id=0x0 magic=0x552b9745 b6 0a 49 b0]
Modem hangup
Connection terminated.

2

Hi @austin.detzel,

First, please follow the troubleshooting steps of this article: https://docs.sixfab.com/docs/raspberry-pi-3g-4g-lte-base-hat-troubleshooting

Could you please provide the output of the following command?

uname -sr
lsusb -t
sudo cat /sys/kernel/debug/usb/devices
dmesg | grep tty

3

I have the same issue

This is the information after execute the commands

Linux 5.4.0-1015-raspi

/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 1: Dev 3, If 1, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 1: Dev 3, If 2, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 1: Dev 3, If 3, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 1: Dev 3, If 4, Class=Vendor Specific Class, Driver=qmi_wwan, 480M
|__ Port 2: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 4: Dev 5, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 4: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M

T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 1
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev= 5.04
S: Manufacturer=Linux 5.4.0-1015-raspi xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:01:00.0
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms

T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 4
D: Ver= 2.10 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=2109 ProdID=3431 Rev= 4.20
S: Product=USB2.0 Hub
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms

T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=2c7c ProdID=0125 Rev= 3.18
S: Manufacturer=Android
S: Product=Android
C:* #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=87(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
E: Ad=89(I) Atr=03(Int.) MxPS= 8 Ivl=32ms
E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0c27 ProdID=3bfa Rev= 9.73
S: Manufacturer=RFIDeas
S: Product=USB Keyboard
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms

T: Bus=01 Lev=02 Prnt=02 Port=03 Cnt=03 Dev#= 5 Spd=1.5 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=03f0 ProdID=304a Rev= 0.11
S: Manufacturer=Chicony
S: Product=HP Business Slim Keyboard
C:* #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms
I:* If#= 1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
E: Ad=82(I) Atr=03(Int.) MxPS= 8 Ivl=10ms

T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 4
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1
P: Vendor=1d6b ProdID=0003 Rev= 5.04
S: Manufacturer=Linux 5.4.0-1015-raspi xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:01:00.0
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms

[ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 bcm2708_fb.fbwidth=1824 bcm2708_fb.fbheight=984 bcm2708_fb.fbswap=1 smsc95xx.macaddr=DC:A6:32:3B:FD:57 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 net.ifnames=0 dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 root=LABEL=writable rootfstype=ext4 elevator=deadline rootwait fixrtc quiet splash
[ 0.001068] printk: console [tty1] enabled
[ 1.868350] fe201000.serial: ttyAMA0 at MMIO 0xfe201000 (irq = 29, base_baud = 0) is a PL011 rev2
[ 1.873654] printk: console [ttyS0] disabled
[ 1.873691] fe215040.serial: ttyS0 at MMIO 0x0 (irq = 31, base_baud = 62500000) is a 16550
[ 1.884261] printk: console [ttyS0] enabled
[ 14.136930] systemd[1]: Created slice system-serial\x2dgetty.slice.
[ 15.540061] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB0
[ 15.544470] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB1
[ 15.548274] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB2
[ 15.548752] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB3

4

Hi @polh,

Could you please provide me the output of the following AT commands?

AT
ATE1
ATI
AT+CPIN?
AT+CFUN?
AT+COPS?
AT+QCFG=”usbnet”
AT+QCFG="band"
AT+CGDCONT?
AT+CSQ
AT+QCSQ
AT+CGATT?
AT+QNWINFO
AT+QCFG="nwscanseq"
AT+QCFG="nwscanmode"
AT+QCFG="iotopmode"

And please share the output of sudo pon

5

Having the same issue. Here are the outputs of the command. If there is any other command needed let me know:

sudo pon

pppd options in effect:
debug # (from /etc/ppp/peers/provider)
updetach # (from /etc/ppp/peers/provider)
persist # (from /etc/ppp/peers/provider)
dump # (from /etc/ppp/peers/provider)
noauth # (from /etc/ppp/peers/provider)
remotename 3gppp # (from /etc/ppp/peers/provider)
/dev/ttyUSB3 # (from /etc/ppp/peers/provider)
115200 # (from /etc/ppp/peers/provider)
lock # (from /etc/ppp/peers/provider)
connect chat -s -v -f /etc/chatscripts/chat-connect -T super # (from /etc/ppp/peers/provider)
disconnect chat -s -v -f /etc/chatscripts/chat-disconnect # (from /etc/ppp/peers/provider)
nocrtscts # (from /etc/ppp/peers/provider)
modem # (from /etc/ppp/peers/provider)
asyncmap 0 # (from /etc/ppp/options)
lcp-echo-failure 4 # (from /etc/ppp/options)
lcp-echo-interval 30 # (from /etc/ppp/options)
hide-password # (from /etc/ppp/peers/provider)
novj # (from /etc/ppp/peers/provider)
novjccomp # (from /etc/ppp/peers/provider)
ipcp-accept-local # (from /etc/ppp/peers/provider)
ipcp-accept-remote # (from /etc/ppp/peers/provider)
ipparam 3gppp # (from /etc/ppp/peers/provider)
noipdefault # (from /etc/ppp/peers/provider)
ipcp-max-failure 30 # (from /etc/ppp/peers/provider)
defaultroute # (from /etc/ppp/peers/provider)
usepeerdns # (from /etc/ppp/peers/provider)
noccp # (from /etc/ppp/peers/provider)
noipx # (from /etc/ppp/options)
abort on (BUSY)
abort on (NO CARRIER)
abort on (NO DIALTONE)
abort on (ERROR)
abort on (NO ANSWER)
timeout set to 30 seconds
send (AT^M)
expect (OK)
^M
OK
– got it

send (ATE0^M)
expect (OK)
^M
^M
OK
– got it

send (AT+CPIN?^M)
expect (OK)
^M
+CPIN: READY^M
^M
OK
– got it

send (AT+CSQ^M)
expect (OK)
^M
+CSQ: 15,99^M
^M
OK
– got it

send (AT+CREG?^M)
expect (OK)
^M
+CREG: 0,5^M
^M
OK
– got it

send (AT+CGREG?^M)
expect (OK)
^M
+CGREG: 0,5^M
^M
OK
– got it

send (AT+COPS?^M)
expect (OK)
^M
+COPS: 0,0,“T-Mobile Twilio”,7^M
^M
OK
– got it

send (AT+CGDCONT=1,“IP”,“super”,0,0^M)
expect (OK)
^M
OK
– got it

send (ATD*99#^M)
expect (CONNECT)
^M
CONNECT
– got it

Script chat -s -v -f /etc/chatscripts/chat-connect -T super finished (pid 5934), status = 0x0
Serial connection established.
using channel 12
Using interface ppp0
Connect: ppp0 <–> /dev/ttyUSB3
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x6017ff24> ]
rcvd [LCP ConfReq id=0x21 <asyncmap 0x0> <magic 0x124f17b0> ]
No auth is possible
sent [LCP ConfRej id=0x21 ]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x6017ff24> ]
rcvd [LCP ConfReq id=0x22 <asyncmap 0x0> <magic 0x124f17b0> ]
sent [LCP ConfAck id=0x22 <asyncmap 0x0> <magic 0x124f17b0> ]
sent [LCP EchoReq id=0x0 magic=0x6017ff24]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPV6CP ConfReq id=0x1 ]
rcvd [LCP DiscReq id=0x23 magic=0x124f17b0]
rcvd [LCP EchoRep id=0x0 magic=0x124f17b0 60 17 ff 24]
Modem hangup
Connection terminated.

cat /etc/os-release

PRETTY_NAME=“Raspbian GNU/Linux 11 (bullseye)”
NAME=“Raspbian GNU/Linux”
VERSION_ID=“11”
VERSION=“11 (bullseye)”
VERSION_CODENAME=bullseye
ID=raspbian
ID_LIKE=debian
HOME_URL=“http://www.raspbian.org/”
SUPPORT_URL=“RaspbianForums - Raspbian”
BUG_REPORT_URL=“RaspbianBugs - Raspbian”
sixfab@raspberrypi:/ $ uname -a
Linux raspberrypi 5.15.56-v7+ #1575 SMP Fri Jul 22 20:28:11 BST 2022 armv7l GNU/Linux

uname -sr

Linux 5.15.56-v7+

lsusb -t

/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=dwc_otg/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 1: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 2: Dev 10, If 0, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 2: Dev 10, If 5, Class=CDC Data, Driver=cdc_ether, 480M
|__ Port 2: Dev 10, If 3, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 2: Dev 10, If 1, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 2: Dev 10, If 4, Class=Communications, Driver=cdc_ether, 480M
|__ Port 2: Dev 10, If 2, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 4, If 0, Class=Hub, Driver=hub/2p, 480M
|__ Port 1: Dev 6, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 2: Dev 7, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 4: Dev 5, If 1, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 4: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 12M

dmesg | grep tty

[ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 bcm2708_fb.fbwidth=1920 bcm2708_fb.fbheight=1080 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000 console=tty1 root=PARTUUID=3e28f195-02 rootfstype=ext4 fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
[ 0.000466] printk: console [tty1] enabled
[ 2.886357] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 114, base_baud = 0) is a PL011 rev2
[ 2.889306] 3f215040.serial: ttyS0 at MMIO 0x3f215040 (irq = 86, base_baud = 50000000) is a 16550
[ 5.467766] systemd[1]: Created slice system-getty.slice.
[ 11.237411] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB0
[ 11.241436] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB1
[ 11.253362] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB2
[ 11.259969] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB3
[ 20.038691] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 20.040364] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 20.053397] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 20.063619] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 20.670476] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB0
[ 20.671073] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB1
[ 20.672150] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB2
[ 20.672996] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB3
[ 46.921011] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 46.921723] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 46.922321] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 46.922810] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 47.434503] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB0
[ 47.435050] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB1
[ 47.435594] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB3
[ 47.436124] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB4

lsusb

Bus 001 Device 005: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 001 Device 007: ID 054c:0baf Sony Corp. MRW-E90
Bus 001 Device 006: ID 054c:0bae Sony Corp. MRW-E90
Bus 001 Device 004: ID 054c:0bac Sony Corp. MRW-E90
Bus 001 Device 010: ID 2c7c:0125 Quectel Wireless Solutions Co., Ltd. EC25 LTE modem
Bus 001 Device 003: ID 046d:c315 Logitech, Inc. Classic Keyboard 200
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

atcom AT

OK

atcom ATE1

ERROR

atcom ATI

Quectel
EG25
Revision: EG25GGBR07A08M2G
OK

atcom AT+CPIN?

+CPIN: READY
OK

atcom AT+CFUN?

+CFUN: 1
OK

atcom AT+COPS?

+COPS: 0,0,“T-Mobile Twilio”,7
OK

atcom AT+QCFG=”usbnet”

ERROR

atcom AT+QCFG=“band”

ERROR

atcom AT+CGDCONT?

+CGDCONT: 1,“IP”,“super”,“0.0.0.0”,0,0,0,0
+CGDCONT: 2,“IPV4V6”,“ims”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 3,“IPV4V6”,“SOS”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,1
OK

atcom AT+CSQ

+CSQ: 18,99
OK

atcom AT+QCSQ

+QCSQ: “LTE”,77,-110,114,-12
OK

atcom AT+CGATT?

+CGATT: 1
OK

atcom AT+QNWINFO

+QNWINFO: “TDD LTE”,“310260”,“LTE BAND 41”,41490
OK

atcom AT+QCFG=“nwscanseq”

ERROR

atcom AT+QCFG=“nwscanmode”

ERROR

atcom AT+QCFG=“iotopmode”

ERROR