<div dir="ltr">Update,<div><br></div><div>I found a small mismatch in my udev file and the one in the forum post (<a href="https://forum.ubuntuusers.de/topic/huawei-me936-baut-keine-verbindung-auf/" target="_blank" style="font-size:12.8px">https://forum.ubuntuusers.de/topic/huawei-me936-baut-keine-verbindung-auf/</a>), and after reboot, I "suddenly" had the MBIM device.</div><div><br></div><div>The udev rule file:</div><div><br></div><div><div>root@B19:/# cat /etc/udev/rules.d/77-huawei-me936.rules </div><div>ACTION=="add|change", SUBSYSTEM=="usb", \</div><div>ENV{DEVTYPE}=="usb_device", \</div><div>ATTR{idVendor}=="12d1", ATTR{idProduct}=="15bb", \</div><div>ATTR{bNumConfigurations}=="3", ATTR{bConfigurationValue}!="3" \</div><div>ATTR{bConfigurationValue}="3"</div><div>root@B19:/#</div></div><div><br></div><div>dmesg:</div><div><br></div><div><div>[ 4.968064] usbserial: USB Serial support registered for GSM modem (1-port)<br></div><div>[ 4.971720] cdc_mbim 2-1.2:3.0: setting rx_max = 16384</div><div>[ 4.972570] cdc_mbim 2-1.2:3.0: setting tx_max = 16384</div><div>[ 4.974691] cdc_mbim 2-1.2:3.0: cdc-wdm0: USB WDM device</div><div>[ 4.975491] cdc_mbim 2-1.2:3.0 wwan0: register 'cdc_mbim' at usb-ci_hdrc.1-1.2, CDC MBIM, 1e:a6:92:88:4c:95</div><div>[ 4.976032] usbcore: registered new interface driver cdc_mbim</div><div>[ 4.976470] option 2-1.2:3.2: GSM modem (1-port) converter detected</div><div>[ 4.980326] usb 2-1.2: GSM modem (1-port) converter now attached to ttyUSB0</div></div><div><br></div><div><br></div><div>mbimcli:</div><div><br></div><div><div>root@B19:/# mbimcli -d /dev/cdc-wdm0 --query-device-caps</div><div>[/dev/cdc-wdm0] Device capabilities retrieved:</div><div><span class="" style="white-space:pre"> </span> Device type: 'embedded'</div><div><span class="" style="white-space:pre"> </span> Cellular class: 'gsm'</div><div><span class="" style="white-space:pre"> </span> Voice class: 'no-voice'</div><div><span class="" style="white-space:pre"> </span> Sim class: 'removable'</div><div><span class="" style="white-space:pre"> </span> Data class: 'gprs, edge, umts, hsdpa, hsupa, custom'</div><div><span class="" style="white-space:pre"> </span> SMS caps: 'pdu-receive, pdu-send'</div><div><span class="" style="white-space:pre"> </span> Ctrl caps: 'reg-manual, hw-radio-switch'</div><div><span class="" style="white-space:pre"> </span> Max sessions: '8'</div><div><span class="" style="white-space:pre"> </span>Custom data class: 'HSPA+'</div><div><span class="" style="white-space:pre"> </span> Device ID: '862595020646622'</div><div><span class="" style="white-space:pre"> </span> Firmware info: '11.350.20.01.00'</div><div><span class="" style="white-space:pre"> </span> Hardware info: 'ML1ME936M'</div><div>root@B19:/#</div></div><div><br></div><div>Seems that the configuration change must happen during the boot/udev, as it is impossible to get it change after the system is up and running.</div><div><br></div><div>I will verify that I get data connection as next.</div><div><br></div><div>Regards,</div><div>Sebastian</div><div><br></div><div class="gmail_extra"> </div></div>