This tutorial only applies in particular to the QS-S4 ZERO LCD throttle. You may not need to replace the whole throttle in case it is broken. We do have spare throttle levers as a spare part too. 

Here are the extent of the settings:
1. P01 - LCD brightness level (1, 2, 3)
2. P02 - Mileage display in km or miles
3. P03 - Voltage level of machine (24, 36, 48, 52, 60V)
4. P04 - 1-60 mins before machine goes to sleep with inactivity
5. P05 - N/A
6. P06 - Wheel diameter in inches
7. P07 - No. of magnets on motor (Default 30)
8. P08 - Power Level (0-100)
9. P09 - Zero start or kickstart 
10. P10 - N/A
11. P11 - Electronic braking on or off
12. P12 - Soft or high acceleration (1 is softest start; 5 is highest torque)
13. P13 and P14 - N/A
14. P15 - Controller cutoff voltage
15. P16 - Zero-ing of ODO
16. P17 - cruise mode
17. P18 to P20 - N/A

Fault Codes (see video on how to resolve the fault codes)
2 - brake
4 - 6kmh cruise
6 - battery undervoltage
7 - motor faulty
8 - throttle faulty
9 - controller faulty
10 - faulty comms between controller and LCD
11 - faulty comms between controller and LCD 
12 - BMS failure
13 - headlight failure

Here is a video explanation:

Thumb Throttle Option

We have also made a custom thumb throttle option that will be easier to throttle for some users. There is finer control with thumb throttles.

This works the same way as the stock ZERO QS-S4 throttle except the throttle lever is pushed by the thumb instead of being triggered by the fore finger. 

Locking System

Together with the ZERO LCD, we provide 2 different integrated locking system: the ordinary key lock and the biometric fingerprint lock.

The key lock comes with 2 spare keys for you while the finger print lock enables 14 different fingerprints to be stored so you can pass on the ebike or e-scooter to be used by anyone of your choosing. 

For both locking systems, the LCD will not be activated if the key or the fingerprint locks are not unlocked.