It seems it’s a variant of the Yolin 80C, whose settings are easily accessed by pressing up and down at the same time for 3 seconds. However, unlike the Yolin (which it is visually identical to in every way), this display’s settings are not accessed in the same way.

The manufacturer isn’t willing to tell me because I assume liability? Or maybe it’s a warranty issue (if they tell me, I can tell others and they can burn out their batteries and receive service)? Not sure. I know it’s illegal to ride it on the street past 20 MPH, but on private property there is no such limit. So it’s kinda bullshit that I’m not able to just open the settings and adjust the speed limit.

I heard it’s possible to connect it to a computer to adjust its settings? Anyone know what dongle/software I’ll need?