Unlock Speed to 55km/h for Xiaomi 4 Ultra | Easy Install Controller Kit

•  Unlock Your Speed: Switch between Street Mode (25km/h) and Sport Mode (up to 55km/h) easily. Perfect for both daily commuting and off-road fun.

•  Smart App Control: Customize speed limits, view riding data, and enable cruise control directly from your smartphone.

•  Intelligent Self-Learning: Features a 10-second self-learning calibration to ensure perfect motor matching and smooth acceleration.

•  Cruise Control System: Automatically maintains your speed after 10 seconds for a fatigue-free long-distance ride.

1. Self-Learning Calibration (Initial Setup) Essential for first-time use to match the motor.

• Step 1: With the scooter powered OFF, press and hold the Power Button for 10 seconds.

• Step 2: You will hear a "Beep" in the first second (screen lights up). Keep holding until you hear 3 short beeps.

• Step 3: The self-learning process starts (approx. 80 seconds).

• Step 4: Wait for another 3 beeps to confirm calibration is complete.

2. Speed Modes & Settings (Via App)

• Limited Mode (Street Legal):

  • Gear 1: 6 km/h

  • Gear 2: 15 km/h

  • Gear 3: 20-28 km/h (Adjustable in App: 20/22/25/28 km/h)

• Unlimited Mode (Off-Road/Sport):

  • Gear 1: 6 km/h

  • Gear 2: 15 km/h

  • Gear 3: 40-55 km/h (Max Power)

3. How to Switch Speed Modes (Hidden Unlock) Switch between Limited and Unlimited modes without the App.

• Action: Hold the Brake Lever + Press Power Button (Long press, short press, or multiple clicks all work).

• Result: Release the brake to confirm the mode switch.

4. Cruise Control

• Enable: Turn on "Cruise Control" in the Mobile App.

• Activate: Hold the throttle steady for 10 seconds while riding. The scooter will maintain speed automatically.

• Deactivate: Twist the throttle again or squeeze the brake lever.