Cellular Connection Unavailable Telit ME910C1

Cellular Modules Telit ME910C1-WW LTE Module
1

Purchased a Raspberry Pi Cellular IoT Kit (LTE-M), went thru setup. Trying to get wwan0 on the internet. connect.sixfab.com says Device Status “Online”, but Last Cellular Connection Status is “Cellular Connection Unavailable”.

Raspberry Pi Model 4

Telit ME910C1 Firmware Version
M0B.800004

(I know this FW version isn’t the latest, but I don’t have access to a Windows machine)

Why can’t wwan0 get an IP addr on the internet? I do see it getting a 192.168.255.20/24 local addr, but even that seems to come and go.

2021-06-30 23:12:15,096 --> run.py             DEBUG    Configurator is working...
2021-06-30 23:12:15,097 --> run.py             DEBUG    Network manager is working...
2021-06-30 23:12:15,177 --> run.py             DEBUG    Monitor is working...
2021-06-30 23:12:16,625 --> monitor.py         DEBUG    Monitoring data updated with changes.
2021-06-30 23:12:16,725 --> modem.py           INFO     Connection interface is reset...
2021-06-30 23:12:16,754 --> modem.py           INFO     Interface wwan0 is down.
2021-06-30 23:12:21,810 --> modem.py           INFO     Interface wwan0 is up.
2021-06-30 23:12:21,811 --> modem.py           DEBUG    Interface Name: wwan0
2021-06-30 23:12:27,922 --> modem.py           INFO     Modem interface is detected.
2021-06-30 23:12:38,946 --> cm.py              ERROR    check_internet() -> No internet!
2021-06-30 23:12:41,625 --> run.py             DEBUG    Configurator is working...
2021-06-30 23:12:41,627 --> run.py             DEBUG    Network manager is working...
2021-06-30 23:12:41,785 --> network.py         INFO     wwan0 metric changed : 10000
2021-06-30 23:12:41,786 --> run.py             DEBUG    Monitor is working...
2021-06-30 23:12:43,246 --> monitor.py         DEBUG    Monitoring data updated with changes.
2021-06-30 23:12:58,948 --> modem.py           INFO     USB interface is reset...
2021-06-30 23:13:10,312 --> cm.py              ERROR    check_internet() -> No internet!
2021-06-30 23:13:10,313 --> run.py             DEBUG    Configurator is working...
2021-06-30 23:13:10,314 --> run.py             DEBUG    Network manager is working...
2021-06-30 23:13:10,449 --> network.py         INFO     wwan0 metric changed : 10000
2021-06-30 23:13:10,450 --> run.py             DEBUG    Monitor is working...
2021-06-30 23:13:11,895 --> monitor.py         DEBUG    Monitoring data updated with changes.
2021-06-30 23:13:30,314 --> modem.py           INFO     Modem is resetting softly...
2021-06-30 23:13:32,874 --> modem.py           DEBUG    Modem turned off.
2

Hi @sfeldma ,

This particular firmware version has some known bugs, which may lead to connection issues. We suggest upgrading the module firmware to solve these known bugs.

3

Thanks ensar. I was afraid that would be the answer.

I need help on firmware install. I got the part about downloading fw zip, running exe on windows. What I’m not sure is how the device is connected to the windows system?

4

Unfortunately, there is no other way to fix this.
Updating the firmware is very simple, here are the steps:

  • Install the USB driver before updating the firmware.
  • Connect the Module to a Windows PC/Laptop.
  • Finally, run the firmware file(.exe)
5

Install which USB driver where?

Is the “Module” the Telit ME910C1 + the HAT? Is the HAT not stacked on the Raspberry PI during this step?

6

USB driver link: https://sixfab.com/wp-content/uploads/2021/06/Telit_Windows_10_WHQL_Drivers_Installer_2.14.0001.zip

You can also access all the links from the module page.

Yes, Telit ME910C1 + the HAT. Do not stack on Raspberry Pi. Just connect HAT to the computer with a USB.

7

Thanks ensar for your help.

I’m on the last step: installing the firmware. The link to the firmware on this page is busted:

Here’s the link:

Looks like two URLs merged? Anyway, I figured it out and got the firmware.