Ubuntu: Ubuntu unable to detect Huawei E392 USB modem with Airtel 4G connection



Question:

Ubuntu unable to detect Huawei E392 USB modem with Airtel 4G connection.

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Output of lsusb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub  Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub  Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub  Bus 001 Device 002: ID 8087:8008 Intel Corp.   Bus 002 Device 002: ID 8087:8000 Intel Corp.   Bus 003 Device 002: ID 0461:4d15 Primax Electronics, Ltd Dell Optical Mouse  Bus 003 Device 003: ID 04b3:3025 IBM Corp.   Bus 003 Device 006: ID 12d1:1505 Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard  

Output of dmesg

[  331.084423] usb 3-7: new high-speed USB device number 6 using xhci_hcd  [  331.103177] usb 3-7: ep 0x81 - rounding interval to 32768 microframes, ep desc says 0 microframes  [  331.103184] usb 3-7: ep 0x1 - rounding interval to 32768 microframes, ep desc says 0 microframes  [  331.109954] scsi8 : usb-storage 3-7:1.0  [  332.109577] scsi 8:0:0:0: CD-ROM            HUAWEI   Mass Storage     2.31 PQ: 0 ANSI: 0  [  332.157291] sr0: scsi3-mmc drive: 0x/0x caddy  [  332.157626] sr 8:0:0:0: Attached scsi CD-ROM sr0  [  332.157852] sr 8:0:0:0: Attached scsi generic sg1 type 5  [  332.291031] scsi 8:0:0:0: killing request  

Can someone please help me with a solution?


Solution:1

Run in terminal

sudo -H gedit /lib/udev/rules.d/40-usb_modeswitch.rules  

and add a line to the file

ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1505", RUN+="usb_modeswitch '%b/%k'"  

Then run

sudo -H gedit /etc/usb_modeswitch.d/12d1:1505  

And paste this text to the editor

 TargetVendor= 0x12d1   TargetProduct= 0x1505   MessageContent="55534243123456780000000000000011062000000100000000000000000000"  

Save the file.

Unplug the modem and plug it in again. In about 20 seconds try to create a connection.


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