iScooter i9 Electric Scooter

Bought in December, It’s currently broken but the company sent me a replacement part to fix it. I have no idea how to replace it and dont have the patience to fix it. Goes 30km speed and range. Comes with replacement part the company sent me and original box with serial number. Still under warranty until December 380$ after tax is the normal price so I’m selling it for 150$ (negotiable)