951Ui-2HnD Huawei ec306

Greets. Its able to get working Huawei ec306 in rndis mode on RouterBoard. It is not visible as LTE interface in Winbox.On my linux notebook (kernel 3.13.0) its working w/o any troubles:
[ 9179.449281] usbcore: registered new interface driver cdc_wdm
[ 9179.471994] qmi_wwan 2-2:1.1: cdc-wdm1: USB WDM device
[ 9179.473323] qmi_wwan 2-2:1.1 wwan0: register ‘qmi_wwan’ at usb-0000:00:1d.7-2, WWAN/QMI device, fe:d4:0c:XX:XX:XX
[ 9179.473751] usbcore: registered new interface driver qmi_wwan

My RoS version is 6.18
Thanks!