“Cellular Connection Unavailable”. ME910C1-WW LE910C4-EU

comodin2002 · June 9, 2022, 8:49pm

Hi,

I just received Raspberry Pi 4G/LTE Cellular Modem Kit and I can see through https://connect.sixfab.com/ that the device is Online but only through the ethernet interface.
It tells me “Cellular Connection Unavailable”.

I’m using this device from spain.

CONNECTIVITY

Device Status: Online

Last Cellular Connection Status: Cellular Connection Unavailable

Active Interface: eth0 (Ethernet)

Available Interfaces: eth0, wwan0, ztrfybnc3j, wlan0

Fixed Incident Count: 0

Platform
Linux-5.15.32-v8±aarch64-with-glibc2.31

Architecture
64bit

LTE MODEM
Vendor: Telit

Name: ME910C1-WW LE910C4-EU

Firmware Version: M0F.670010

IMEI

(I do not show for privacy)

Vendor ID - Product ID: 1bc7 - 1101

SIM

ICCID

(I do not show for privacy)

Active LTE Technology

n/a

Roaming Operator

n/a

What could I do?

Thank you very much for your help

ensar · June 10, 2022, 6:33am

Hi,

If you activate the remote support setting of your device and share the support key with me, I can help.
Could you PM me your remote-support token so that I can check and solve it? Thanks.

comodin2002 · June 10, 2022, 10:20am

Thanks @ensar , I’ll do in a few hour to connect device to internet.

comodin2002 · June 10, 2022, 7:35pm

Hi @ensar I can not send to you a private message. It’s said
“Sorry, you cannot send a personal message to that user.”

ensar · June 10, 2022, 8:19pm

The module was in MBIM mode and I reset it. Everything is fine right now.

Similar topic: Raspberry Pi 3G/4G&LTE Base HAT USBtty's dissappeared - #9 by ensar
I just followed the steps here.

/ $ lsusb -t
/:  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 4, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
        |__ Port 1: Dev 4, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
        |__ Port 3: Dev 3, If 0, Class=Communications, Driver=cdc_mbim, 480M
        |__ Port 3: Dev 3, If 1, Class=CDC Data, Driver=cdc_mbim, 480M

/ $ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 1bc7:1205 Telit Wireless Solutions LE910C4-EU

comodin2002 · June 10, 2022, 8:25pm

Ole!
Well done!
I’ll check your link to understand MBIM mode.

Thanks a lot!

comodin2002 · June 16, 2022, 4:20pm

Hi,
I have “Cellular Connection Unavailable” again
@ensar you already have a remote support token in MP justs If you would be so kind as to help me again.
Thank you.

ensar · June 16, 2022, 9:08pm

Hi,

Please make sure your antenna is connected properly. The module signal strength is poor, and sometimes it cannot be detected.

comodin2002 · June 20, 2022, 10:44am

Hi,
Following Troubleshooting guide here is my outputs:

First of all, why do both ttyusb2 and ttyusb3 respond to me?
atcom --port /dev/ttyUSB2 AT
OK

atcom --port /dev/ttyUSB3 AT
AT
OK

I will send the comments to ttyUSB2 anyway.

cat /etc/os-release
PRETTY_NAME=“Debian GNU/Linux 11 (bullseye)”
NAME=“Debian GNU/Linux”
VERSION_ID=“11”
VERSION=“11 (bullseye)”
VERSION_CODENAME=bullseye
ID=debian
HOME_URL=“https://www.debian.org/”
SUPPORT_URL=“Debian -- User Support”
BUG_REPORT_URL=“https://bugs.debian.org/”

uname -a
Linux vatap 5.15.32-v8+ #1538 SMP PREEMPT Thu Mar 31 19:40:39 BST 2022 aarch64 GNU/Linux
vatap@vatap:~ $

lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 066: ID 1bc7:1206 Telit Wireless Solutions LE910C4-EU
Bus 001 Device 061: ID 03f0:0324 HP, Inc SK-2885 keyboard
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lsusb -t
/: 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 61, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 3: Dev 66, If 0, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 66, If 1, Class=Vendor Specific Class, Driver=, 480M
|__ Port 3: Dev 66, If 2, Class=Communications, Driver=cdc_ether, 480M
|__ Port 3: Dev 66, If 3, Class=CDC Data, Driver=cdc_ether, 480M
|__ Port 3: Dev 66, If 4, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 66, If 5, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 66, If 6, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 66, If 7, Class=Vendor Specific Class, Driver=option, 480M

usb-devices
strong text
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 1
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev=05.15
S: Manufacturer=Linux 5.15.32-v8+ xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:01:00.0
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub

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=04.21
S: Product=USB2.0 Hub
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub

T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 61 Spd=1.5 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=03f0 ProdID=0324 Rev=01.04
S: Manufacturer=Lite-On Technology Corp.
S: Product=HP Basic USB Keyboard
C: #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
I: If#=0x0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid

T: Bus=01 Lev=02 Prnt=02 Port=02 Cnt=02 Dev#= 66 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1bc7 ProdID=1206 Rev=03.18
S: Manufacturer=Android
S: Product=LE910C4-EU
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 8 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I: If#=0x1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
I: If#=0x2 Alt= 0 #EPs= 1 Cls=02(commc) Sub=06 Prot=00 Driver=cdc_ether
I: If#=0x3 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether
I: If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x6 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x7 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option

T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 4
D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1
P: Vendor=1d6b ProdID=0003 Rev=05.15
S: Manufacturer=Linux 5.15.32-v8+ xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:01:00.0
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub

dmesg | grep tty
[ 6208.324858] usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB0
[ 6208.330166] usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB1
[ 6208.330557] usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB2
[ 6208.330934] usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB3
[ 6208.331356] usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB4
[ 6227.589171] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 6227.617239] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 6227.617664] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 6227.618097] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 6227.618593] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4

ls -l /sys/bus/usb-serial/devices
total 0
lrwxrwxrwx 1 root root 0 jun 20 12:30 ttyUSB0 → …/…/…/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.0/ttyUSB0
lrwxrwxrwx 1 root root 0 jun 20 12:30 ttyUSB1 → …/…/…/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.4/ttyUSB1
lrwxrwxrwx 1 root root 0 jun 20 12:30 ttyUSB2 → …/…/…/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.5/ttyUSB2
lrwxrwxrwx 1 root root 0 jun 20 12:30 ttyUSB3 → …/…/…/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.6/ttyUSB3
lrwxrwxrwx 1 root root 0 jun 20 12:30 ttyUSB4 → …/…/…/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.7/ttyUSB4

ls -l /dev/serial/by-id
total 0
lrwxrwxrwx 1 root root 13 jun 20 12:29 usb-Android_LE910C4-EU_0123456789ABCDEF-if00-port0 → …/…/ttyUSB0
lrwxrwxrwx 1 root root 13 jun 20 12:29 usb-Android_LE910C4-EU_0123456789ABCDEF-if04-port0 → …/…/ttyUSB1
lrwxrwxrwx 1 root root 13 jun 20 12:29 usb-Android_LE910C4-EU_0123456789ABCDEF-if05-port0 → …/…/ttyUSB2
lrwxrwxrwx 1 root root 13 jun 20 12:29 usb-Android_LE910C4-EU_0123456789ABCDEF-if06-port0 → …/…/ttyUSB3
lrwxrwxrwx 1 root root 13 jun 20 12:29 usb-Android_LE910C4-EU_0123456789ABCDEF-if07-port0 → …/…/ttyUSB4

atcom --port /dev/ttyUSB2 AT

OK

atcom --port /dev/ttyUSB2 ATI

332

OK

atcom --port /dev/ttyUSB2 AT+CGMR
[ERR] Timeout, couldn’t get response

atcom --port /dev/ttyUSB2 AT+CPIN?

+CPIN: READY

OK

atcom --port /dev/ttyUSB2 AT+CPAS

+CPAS: 0

OK

atcom --port /dev/ttyUSB2 AT+CFUN?

+CFUN: 1

OK

atcom --port /dev/ttyUSB2 AT+COPS?
[ERR] Couldn’t open serial communication

atcom --port /dev/ttyUSB2 AT#USBCFG?
AT#USBCFG?
#USBCFG: 4

OK

atcom --port /dev/ttyUSB2 AT#BND?

#BND: 0,15,80800C5

OK

atcom --port /dev/ttyUSB2 AT+CREG?

+CREG: 0,2

OK

atcom --port /dev/ttyUSB2 AT+CGDCONT?

#ECM: 0,1

OK

Hi,
Following Troubleshooting guide here is my outputs:

cat /etc/os-release
PRETTY_NAME=“Debian GNU/Linux 11 (bullseye)”
NAME=“Debian GNU/Linux”
VERSION_ID=“11”
VERSION=“11 (bullseye)”
VERSION_CODENAME=bullseye
ID=debian
HOME_URL=“https://www.debian.org/”
SUPPORT_URL=“Debian – User Support”
BUG_REPORT_URL=“https://bugs.debian.org/”

uname -a
Linux vatap 5.15.32-v8+ #1538 SMP PREEMPT Thu Mar 31 19:40:39 BST 2022 aarch64 GNU/Linux
vatap@vatap:~ $

lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 066: ID 1bc7:1206 Telit Wireless Solutions LE910C4-EU
Bus 001 Device 061: ID 03f0:0324 HP, Inc SK-2885 keyboard
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lsusb -t
/: 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 61, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 3: Dev 66, If 0, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 66, If 1, Class=Vendor Specific Class, Driver=, 480M
|__ Port 3: Dev 66, If 2, Class=Communications, Driver=cdc_ether, 480M
|__ Port 3: Dev 66, If 3, Class=CDC Data, Driver=cdc_ether, 480M
|__ Port 3: Dev 66, If 4, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 66, If 5, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 66, If 6, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 66, If 7, Class=Vendor Specific Class, Driver=option, 480M

usb-devices
strong text
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 1
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev=05.15
S: Manufacturer=Linux 5.15.32-v8+ xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:01:00.0
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub

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=04.21
S: Product=USB2.0 Hub
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub

T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 61 Spd=1.5 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=03f0 ProdID=0324 Rev=01.04
S: Manufacturer=Lite-On Technology Corp.
S: Product=HP Basic USB Keyboard
C: #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
I: If#=0x0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid

T: Bus=01 Lev=02 Prnt=02 Port=02 Cnt=02 Dev#= 66 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1bc7 ProdID=1206 Rev=03.18
S: Manufacturer=Android
S: Product=LE910C4-EU
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 8 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I: If#=0x1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
I: If#=0x2 Alt= 0 #EPs= 1 Cls=02(commc) Sub=06 Prot=00 Driver=cdc_ether
I: If#=0x3 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether
I: If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x6 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x7 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option

T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 4
D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1
P: Vendor=1d6b ProdID=0003 Rev=05.15
S: Manufacturer=Linux 5.15.32-v8+ xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:01:00.0
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub

dmesg | grep tty
[ 6208.324858] usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB0
[ 6208.330166] usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB1
[ 6208.330557] usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB2
[ 6208.330934] usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB3
[ 6208.331356] usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB4
[ 6227.589171] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 6227.617239] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 6227.617664] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 6227.618097] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 6227.618593] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4

ls -l /sys/bus/usb-serial/devices
total 0
lrwxrwxrwx 1 root root 0 jun 20 12:30 ttyUSB0 → …/…/…/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.0/ttyUSB0
lrwxrwxrwx 1 root root 0 jun 20 12:30 ttyUSB1 → …/…/…/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.4/ttyUSB1
lrwxrwxrwx 1 root root 0 jun 20 12:30 ttyUSB2 → …/…/…/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.5/ttyUSB2
lrwxrwxrwx 1 root root 0 jun 20 12:30 ttyUSB3 → …/…/…/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.6/ttyUSB3
lrwxrwxrwx 1 root root 0 jun 20 12:30 ttyUSB4 → …/…/…/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.7/ttyUSB4

ls -l /dev/serial/by-id
total 0
lrwxrwxrwx 1 root root 13 jun 20 12:29 usb-Android_LE910C4-EU_0123456789ABCDEF-if00-port0 → …/…/ttyUSB0
lrwxrwxrwx 1 root root 13 jun 20 12:29 usb-Android_LE910C4-EU_0123456789ABCDEF-if04-port0 → …/…/ttyUSB1
lrwxrwxrwx 1 root root 13 jun 20 12:29 usb-Android_LE910C4-EU_0123456789ABCDEF-if05-port0 → …/…/ttyUSB2
lrwxrwxrwx 1 root root 13 jun 20 12:29 usb-Android_LE910C4-EU_0123456789ABCDEF-if06-port0 → …/…/ttyUSB3
lrwxrwxrwx 1 root root 13 jun 20 12:29 usb-Android_LE910C4-EU_0123456789ABCDEF-if07-port0 → …/…/ttyUSB4

atcom --port /dev/ttyUSB2 AT

OK

atcom --port /dev/ttyUSB2 ATI

332

OK

atcom --port /dev/ttyUSB2 AT+CGMR
[ERR] Timeout, couldn’t get response

atcom --port /dev/ttyUSB2 AT+CPIN?

+CPIN: READY

OK

atcom --port /dev/ttyUSB2 AT+CPAS

+CPAS: 0

OK

atcom --port /dev/ttyUSB2 AT+CFUN?

+CFUN: 1

OK

atcom --port /dev/ttyUSB2 AT+COPS?
[ERR] Couldn’t open serial communication

atcom --port /dev/ttyUSB2 AT#USBCFG?
AT#USBCFG?
#USBCFG: 4

OK

atcom --port /dev/ttyUSB2 AT#BND?

#BND: 0,15,80800C5

OK

atcom --port /dev/ttyUSB2 AT+CREG?

+CREG: 0,2

OK

atcom --port /dev/ttyUSB2 AT+CGDCONT?

#ECM: 0,1

OK

atcom --port /dev/ttyUSB2 AT+CSQ

+CSQ: 21,3

OK

atcom --port /dev/ttyUSB2 AT+CGATT?
[ERR] Couldn’t open serial communication

atcom --port /dev/ttyUSB2 AT+GMM

ERROR

atcom --port /dev/ttyUSB2 AT#SWPKGV

25.21.670-P0F.671803
M0F.670010
P0F.671803
A0F.670010

OK

atcom --port /dev/ttyUSB2 AT#FWSWITCH?

ERROR

atcom --port /dev/ttyUSB2 AT+CGREG?

+CGREG: 0,2

OK

atcom --port /dev/ttyUSB2 AT#CGPADDR=

#CGPADDR: 1,“100.78.115.59”
#CGPADDR: 2,""
#CGPADDR: 3,""

OK

Thanks for your help!

comodin2002 · June 22, 2022, 7:22am

Any idea how to solve it?

comodin2002 · June 23, 2022, 5:15pm

Hi,
I have noticed that the result of this command
atcom --port /dev/ttyUSB2 AT+CGREG?

sometimes gives +CREG: 0,2 and sometimes +CREG: 0,5

comodin2002 · June 23, 2022, 5:25pm

I have now managed to get a connection but using a different sim.
Previously I always tried with the sim that sixfab had sold me and that originally had connection.
What has happened with this sim? What could I try to find out?

ensar · June 27, 2022, 6:32am

Did you check your antenna connection? Because of the signal’s poor quality, this disconnection happens.

comodin2002 · June 28, 2022, 10:03am

Yes, I checked the antennas and they were fine.
The strange thing is that with another sim it works fine.
Is it possible that it has run out of credit? I don’t think so since it tells me the following:

comodin2002 · June 28, 2022, 10:08am

I think I have found what the problem was.