The old HiLink.app included with the usb-stick was not usable in Catalina because it was an 32 bit application.
I had to find some other way to get internet access and I have been using external travel routers with Catalina until now.
There was also a solution "HoRNDIS(the USB tethering driver for Mac OS X)" but it had installation problems with later versions of 10.15.
I discovered recently that Huawei has published a new HiLink.app usable in Catalina
HUAWEI 4G Dongle E3372
There is an detailed "Driver Installation Guide for MAC10.15 OS" on the page in addition to the software.
I have tested the installation with the following dongles and all worked without any problems
I had to find some other way to get internet access and I have been using external travel routers with Catalina until now.
There was also a solution "HoRNDIS(the USB tethering driver for Mac OS X)" but it had installation problems with later versions of 10.15.
I discovered recently that Huawei has published a new HiLink.app usable in Catalina
HUAWEI 4G Dongle E3372
There is an detailed "Driver Installation Guide for MAC10.15 OS" on the page in addition to the software.
I have tested the installation with the following dongles and all worked without any problems
- E3372s-153
- E3372h-153
- E3351 UltraStick (3G).
- E3531s-2 (3G)