QS-S4 Throttle Display The QS-S4 is the trigger throttle and LCD display used for the Bexly 8, Bexly 9, Bexly 10 & Bexly 10X. It is also used for the Carbon Oxy 10 and 10 Pro v2 Black Edition 10x and 11x, eGlide Mach 10, Zero 8, Zero 8X, Zero 9, Zero 10, Zero 10X and Zero 11X, as well as many other electric scooters, including Kaabo, Apollo (City, Explore, Light, Pro), EVOLV (City, Pro, Tour 2,0, Tour XL), and many others. VOLTAGE can be set between 48V - 72V (via the P3 setting). Connection Type: 6-pin round waterproof plug - MALE CONNECTOR. USB Port The QS-S4 also features a USB port that can supply 5V at around 500 mA to 1000 mA of current. It’s primarily intended for flashing the unit. How to Access Settings on the QS-S4 Throttle Power on your scooter. Hold the Mode + Power buttons (3-5 seconds) to access the P-setting menu. Use the Mode button to toggle through P-settings. Press the Power button to select the P-setting to adjust. Press Mode button to increase the value, and Power button to decrease the value. To save settings, allow the LCD display to timeout (3-5 seconds) or long press Mode + Power buttons to exit the menu. QS-S4 Error Codes When the LCD display controller detects an error, you’ll get the triangle and exclamation mark symbol, and it will display the fault code just above the battery life display. QS-S4 Error Code Meaning 2 Brake sensor 6 Battery under-voltage 7 Motor fault 8 Motor/Hall sensor 9 Controller fault 10 Controller RX fault 11 Controller TX fault 12 BMS communication error 13 Headlight error Note: This listing is for 1 throttle display.