I dont’t think that’s the case.
- it’s connecting OK to Huawei E3372 (hilink), this is same connection type, showing “tethering” properly
- all modules are installed
- editing MODEM_1_1 interface in Luci, changing protocol from default “static address” to “DHCP client” allows connection to be established, but still showing connection type as “3G/4G Modem” which is incorrect (should be “tethering”)