Xiaomi 4 lite second gen scooter

The Xiaomi Electric Scooter 4 Lite (2nd Gen) is an urban commuter scooter featuring a 300W rated motor (500W peak), a 25km/h top speed, and a 25km travel range, upgraded with 10-inch pneumatic tires and a sleek, high-strength carbon-steel frame weighing 16.2kg. It supports a 100kg load, offers IPX4 resistance, and charges in about 8 hours
Brake malfunctions sometimes, fixing it will cost around 10-15S!!!!!!