Wireless Joint

I realise that this is a late answer.
The pupose is to have MBIM show up in the proto list when creating a new network interface.

1. install usb, serial and mbim modules according to this receipe https://openwrt.org/docs/guide-user/network/wan/wwan/ltedongle 2. unpack mbim.zip 3. Copy and replace /lib/netifd/proto/mbim.sh with the one from the zip check permissionss, must be executable 4. Copy luci-proto-mbim_1.0-1_mipsel_24kc...

Daniel Wood has created a script that will convert any EM7455 to Sierra standard on latest FW.
The Script is run from Ubuntu LiveUSB and is in my opinion the simplest way to to do the conversion.

https://www.ttl.one/2018/07/sierra-wire ... m74xx.html

Frank

For OpenWRT/LEDE you cn use the package MWAN3 to configure loadsharing and fail over.