Did you try something like the config example in this solution: How to setup Huawei E3372h-607 with NCM LTE - #16 by tectonic
You'll obviously have to change the APN to whatever your operator wants, and you may have to use a different ttyUSBx device, but I believe the example is as close as we can get without actually trying. What does you config look like now?
Don't worry about flashing - you probably don't need that since your stick shows serial ports along with the network port. That's a good sign.
And don't worry about cdc_ncm vs huawei_cdc_ncm. It's pretty much the same, except that you don't get a cdc-wdmX device with cdc_ncm. But you don't need one. It's just an alternative AT command channel in some Huawei modesm. Any ttyUSBx serial device accepting AT commands is just as good.