Telit LE910C1 Does not respond

Cellular Modules Telit LE910C1/C4 LTE Module
1

Hello

I am trying to configure the sixfab 4g lte cellular modem with ecm mode in raspberry pi 5.

I follow this tutorial of sixfab.

pi@rpi5:~ $ sudo apt update && sudo apt upgrade -y
…

pi@rpi5:~ $ sudo apt purge modemmanager -y
…

pi@rpi5:~ $ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 1bc7:1036 Telit Wireless Solutions LE910C1-WWX
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

pi@rpi5:~ $ lsusb -t
/: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/2p, 480M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 1: Dev 2, If 1, Class=Vendor Specific Class, Driver=option, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=dwc2/1p, 480M

pi@rpi5:~ $ dmesg | grep ttyUSB
[ 765.897322] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 765.897637] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB1

// Observation when i configured it also had ttyUSB2

sudo apt install minicom
…

sudo minicom -D /dev/ttyUSB2 -b 115200
AT
AT+CGDCONT=1,“IPV4V6”,“super”
AT#USBCFG=4

After this command the minicom freeze more than a minute, i rebooted the raspberry pi the ttyUSB* disapeared, i try to recofigure the ttyUSB* manually but it does not works

I format the card to do try it again in a clean installation but continues not working [the results before is from clean instalation]

What i have to do?

Regards

2

Dear @guilherme.zucco,

Thank you for sharing the detailed information.

Based on your logs, we see that you are using the Telit LE910C1-WWX module. Please note that this specific module is not one of the models we officially supply or have tested as part of our Sixfab kits.

According to our documentation, ECM mode has been successfully tested and verified with the following Telit modules:

  • LE910C4-NF
  • LE910C4-EU
  • LE910C4-AP
  • ME910C1-WW

You can view the compatibility details and setup guide here: ECM Mode Setup & Supported Modules

Additionally, you can refer to Telit’s official AT command documentation for this module series: LE910Cx AT Commands Reference Guide (PDF)

Please review Section 3.2.2.55, which explains how to correctly use the AT#USBCFG=<composition> command. This section is specific to LE910Cx ThreadX-based products like yours and provides instructions on configuring USB interface modes.

If you are unable to resolve the issue using the documentation, we recommend contacting Telit support, as they are the original manufacturer of the LE910C1-WWX module and best equipped to assist with its configuration and compatibility.