Ideally, your Huawei device will only allow you to turn the mock location on.
There are kids who are crazy about the game.
Launch it and click on the "Virtual Location" which will be among the options present.
In other words, you can stationary to play this game with the pokemon go hacks.
So the answer to the question " Can you still fake GPS on Pokemon Go", is YES.
Once you see that, open Google Maps to see if it thinks you're in the spoofed location or your real location.