What am I doing wrong?

[Mulbin01]

Sorry, new to python!

I have the correct badge 0x0416 0x5020 (mine is the G1144) and I'm following all the steps for the dependancies, successfully uploaded driver, gone through python setup in CMD etc, but the badge is still stuck on the default chinese demo text and nothing I try to upload seems to affect it.

I didn't get any software from the seller so really hoping this can work for me!

The only difference I can see is I have python 3.8 not 3.7, will that be an issue?

[Mulbin01]

Forgot to say, running windows 10

[Mulbin01]

Removed 3.8 and tried 3.7. I've been through a few times meticulously recreating each step exactly as the instructions say but it just doesn't work. I'm still looking at a battery and a coffee cup, scrolling through modes it still just has the sample chinese text it arrived with.

When I run any command via cmd (like python3 ./led-badge-11x44.py "Hello World!") absolutely nothing happens, no error message, no reaction from the LED badge.

So presumably python just isn't communicating with the badge at all. Any ideas?