My e-scooter broke suddenly when i was riding it. I saw the battery being full percentage and then drop from 5 stripes to 2 to 1 and then boom, it went out.

I haven't been able to start it since & so i thought i needed a different battery but it turns out, it's my controller that broke instead. My battery can charge up, and doesn't discharge when left out.

I can't seem to get my display working whenever i plug it in the controller so i assume it's my controller that broke down and not the motor itself. So here i am, wondering which controller to get.

But, as i done my research on controllers it seems to me that i only need the 3 connectors to be put inside my motor. Yellow,green and blue. My question now is that the only 3 cables i need to put inside my motor? Because if so, i could just buy a new lcd screen and it all should be working again. But i'm wondering if i'm essentially missing something or seeing something overhead. So that's why i wanted to ask before i buy myself something i don't need.

I also want to rule out that my brake is manual, so it isn't electrical when i use my brake.