I have purchased Huawei E3372 LTE modem for the purpose of using it as a backup link for my home Internet connection. I have found a good option with Telemach mobile carrier that offers pay-per-use access to their LTE network with NET2GO mobile data package. You only pay when you actually need to access the Internet. So let’s see how to configure this thing on Ubuntu ARM computer.
When first inserting the USB dongle with the SIM card into computer, this is what “dmesg” will reveal:
- usb 1-1.4: new high-speed USB device number 3 using ci_hdrc
- usb-storage 1-1.4:1.0: USB Mass Storage device detected
- scsi1 : usb-storage 1-1.4:1.0 scsi 1:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
- scsi 1:0:0:1: Direct-Access HUAWEI TF CARD Storage 2.31 PQ: 0 ANSI: 2
- sd 1:0:0:1: [sdb] Attached SCSI removable disk
- usb 1-1.4: USB disconnect, device number 3
- usb 1-1.4: new high-speed USB device number 4 using ci_hdrc
- usb-storage 1-1.4:1.2: USB Mass Storage device detected
- scsi2 : usb-storage 1-1.4:1.2
- scsi 2:0:0:0: Direct-Access HUAWEI TF CARD Storage 2.31 PQ: 0 ANSI: 2
- sd 2:0:0:0: [sdb] Attached SCSI removable disk
Bus 001 Device 004: ID 12d1:14dc Huawei Technologies Co., Ltd.
For things to work you need several usb modules compiled already in the kernel. Since I have an ARM machine I don’t have the required modules (usbnet, usbcore, cdc_ether) compiled, therefore I was unable to continue from here, without kernel recompilation. It is suggested that you have all the required usb packages installed to further continue with the setup.
# aptitude install libusb++-0.1-4c2 libusb++-dev libusb-1.0-0-dev libusb-dev
There is a tool called “usb_modeswitch” that I used to detect the modem. Next packages to be installed are “usb-modeswitch usb-modeswitch-data”.
# aptitude install usb-modeswitch usb-modeswitch-data
# usb_modeswitch -J -v 0x12d1 -p 0x14dc
From this point on I was out of luck to continue with the setup. Here is a list of related links from where you should find the additional information.