Huawei E3372h and Zyxel NBG6616 problems

Hello,
i have one Zyxel NBG6616 ( r5117-fbde9ac) and one usb modem E3372h-153 4G dongle.
I'm trying to install the modem on this router. But it doesn't work.
I tryied all kind of guides on internet, without results.

For example: https://gist.github.com/bjoern-r/1345e8a17f4acf41006330e688af1441
or w i k i .openwrt.org/doc/recipes/ltedongle or telent.net/2016/11/12/huawei_e3372_with_openwrt

opkg update && opkg install kmod-usb-net-cdc-ether usb-modeswitch

How can i do?
thanks

are you done with using e3372 to openwrt?
if done, can you guide me how to do it?