I am certainly not comfortable with the idea of using the drivers but the problem is that if you look at the Ubuntu discussion I linked to in my original posting, you will see the USB descriptors are encoded in such a way that they will not be processed correctly unless you are running the very ...

%PCUIDeviceDesc% = DevInstall, USBCDCACM\VID_12D1&PID_1C1F&MI_00 pcui

%NCMDeviceDesc% = ew_jucdcncm.ndi, USBCDCNCM\VID_12D1&PID_1C1F&MI_02 cdc_ncm

%BTDeviceDesc% = DevInstall, USBCDCACM\VID_12D1&PID_1C1F&MI_04 bluetooth

I didn't realise there was a version of this device with Bluetooth support ...

But looking at this particular device it seems I missed this device ID when adding Huawei vendor specific ACM devices recently. I guess we need to add an exception for 12d1:1c1f as well. Could you confirm that doing

modprobe option
echo 12d1 1c1f >/sys/bus/usb-serial/drivers/option1/new_id ...

Thanks for the feedback.

I tend to run Linux distributions which are built around stability rather than leading edge features and this unit (in the Ethernet over USB mode) will not complete the configuration process on those distributions as the kernel level support for this specific device does ...

Thanks for the suggestion but it still mode switches to 12d1:1c1f.

The default ID after power up is 12d1:14fe:

Bus 001 Device 002: ID 12d1:14fe Huawei Technologies Co., Ltd.

I am using usb-modeswitch-data-20121109/usb_modeswitch.d/12d1:14fe as the template:

# T-Mobile NL (Huawei E352 ...

Hello,

I have a Huawei E5331 which is a Wi-Fi dongle with a USB port as well. The device works ok in Wi-fi mode, but I want to use it with some Linux systems in USB mode as well.

Using the current versions of USB_ModeSwitch and the data package, I can mode switch this device just fine, but it ...