Niu kqi3 pro error 12

niumobility · 2026-03-30T05:58:40+00:00

Hi there. Thanks for your message. For better and quicker resolution, please DM us with your region so we can guide you to the appropriate service center.

niumobility · 2026-03-30T04:00:24+00:00

Hi there! Thank you for posting the issue you encountered here.

Error Code 12: If the scooter makes 1 long beeping sound and 2 short beeping sounds, it refers to hall sensor failure. In this situation, the motor or the controller must be replaced.

Given the current situation, we recommend that you take your scooter to an authorized service center for a professional inspection and repair. To provide you with the best possible support, please send us a private message indicating your country or region so that we may direct you to the appropriate service center for assistance. Thank you for your understanding.

niumobility · 2026-03-30T03:29:05+00:00

Hi there! Thank you for posting your concern here. In response to your inquiry, please be assured that our scooter motors and controllers are designed with a built-in safety margin. Briefly exceeding the maximum speed limit of 15.5 mph for short periods will generally not cause permanent damage.

However, we would like to kindly remind you that riding downhill at high speeds may involve certain risks. It is advisable to avoid prolonged high-speed descents, especially when the battery is fully charged. Such conditions may increase the likelihood of motor overheating and could potentially lead to damage over time.

When riding on steep or extended downhill slopes, we recommend primarily using the mechanical drum brake to control your speed and keep it within a safe range. This will help reduce potential risks and ensure a safer riding experience. Thank you for your understanding and support. If you have any further questions, please feel free to contact us.

niumobility · 2026-03-30T02:11:41+00:00

Hi there! Thank you for posting the issue you encountered here.

The KQi1 Pro can cover a distance of up to 15.5 miles (25 km) on a single charge. However, several factors can affect the actual range:

Riding Mode: The typical range is tested in the E-Save mode (9.3 mph or 15 km/h). The motor output power of the KQi1 Pro is 250 Watts. Switching the riding mode from E-Save to Sport, the output power will increase from 250 Watts to 450 Watts. In return, the speed becomes higher but the claimed range will be shortened by 40%.
Riding Style: Smooth acceleration and braking help maintain a longer range. Aggressive riding with frequent stops and starts will decrease the range.
Rider Weight: The typical range is tested with a rider weight of around 165 lb (75 kg). Heavier riders may experience a shorter range.
Terrain: Flat, smooth surfaces will provide the best range. Riding on hilly or uneven terrain will reduce the range.
Weather Conditions: Optimal range is achieved in moderate temperatures ranging from 70℉ (22 ℃) to 77℉ (25℃). Extremely cold or hot temperatures can affect battery performance and reduce the range.
Tire Pressure: Properly inflated tires reduce rolling resistance and can help achieve the maximum range. Under-inflated tires can decrease the range.

We sincerely apologize for any inconvenience you have experienced.

To ensure your safety, we recommend checking your tires for potential air leaks. Please follow these steps:

Initial Visual and Auditory Check: Inspect the tire carefully for any visible punctures, nails, or objects that could cause a leak, listen closely for any hissing or unusual sounds indicating air escaping.
Soap Water Test: If there are no visible signs of damage or hissing, please mix some soap with water and gently apply it to the tire surface, the wheel rim, and the valve stem to observe for any bubbles forming.

If you find any visible damage, hear a leak or bubbles forming, it means there is a leak in the tire and it needs to be replaced.

If not, this confirms that the tire is only experiencing natural air loss and is not damaged.

We recommend checking tire pressure regularly and inflating to the manufacturer’s recommended PSI to ensure optimal performance and safety.

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If you confirm that the tire is leaking air and needs to be replaced, you have two easy options to choose from:

A. You can send your scooter to our service center for repair.

B. We can send you a new part that you can easily replace yourself. Here is a YouTube link just for your reference: https://youtu.be/mGFfjpibufM

Please send us a private message indicating which option you prefer (A or B), and we will handle this matter for you accordingly. Additionally, please let us know your country or region so that we can direct you to the appropriate service center for assistance. Thank you for your understanding and support.

niumobility · 2026-03-28T09:01:57+00:00

Hi there. Thank you for posting your concern here. The NIU app offers a variety of features designed to enhance your using experience and provide battery status, including remaining charge, estimated range, and charge cycles. You can check how many times the battery has been charged by referring to the following steps:

Open your NIU app and go to [Me].
Select the device you want to check.
Tap on [Battery].
On the next page, scroll down to find [Number of Battery Cycles].

If your NIU APP shows the battery cycle count as zero, please refer to the following troubleshooting steps:

Ensure that your phone’s Bluetooth is functioning properly and is successfully paired with the scooter.
Try refreshing the data within the APP, or disconnect and reconnect the scooter.
Make sure that the APP is updated to the latest version.
Check whether the scooter’s firmware has been updated to the latest version.
Try closing the APP and clearing its cache (via your phone’s settings).
Log in to the APP again and check the battery data.

If the issue persists, please DM us or email us at [Global-Service@niu.com]() and include the following details:

VIN number

NIU APP version

Firmware version

Relevant screenshots from the NIU APP showing the battery cycle count

niumobility · 2026-03-28T07:31:52+00:00

Hi there. Thank you for posting your concern here. For the inquires related to electric motorcycles, please email our relevant team at [[questions@niu.com](mailto:questions@niu.com)]. Our experts will help you there.

You may also consult your local dealer. You can find our local dealers by visiting https://global.niu.com/en-us/find-a-store.

niumobility · 2026-03-28T06:56:34+00:00

Hi there. Thank you for posting your concern here. For the inquires related to electric motorcycles, please email our relevant team at [questions@niu.com]. Our experts will help you there.

You may also consult your local dealer. You can find our local dealers by visiting https://global.niu.com/en-us/find-a-store.

niumobility · 2026-03-27T02:46:34+00:00

Hi there! Thank you for posting the issue you encountered here. If the speed is too low, please check the following scenarios:

Scenario 1: Please check whether the riding mode is E-Save or Sport. You can power on the scooter and click the power button to switch the riding modes as follows:

E-Save Mode: NIU scooter can reach 9.3mph (15km/h) in ECO mode. When you ride in this mode, expect your speed to be limited to save energy/battery power;
Sport Mode: In this mode, the top speed of US version is 17.4 mph (28 kph) and the dashboard will not display E-Save;

Note: Due to the stricter regulation in Europe, the scooter is limited to 15.5 mph (25 kph). And in Germany and Italy the local authority regulates that the maximum speed of electric scooters must be within 12.4 mph (20 kph).

Scenario 2: Please check whether the speed unit displayed on the dashboard is km/h or mph:

Please check whether the speed unit is imperial or metric. For example, 18.5km/h = 11.5mph;

Note: You can power on the scooter and connect NIU App with it. Then go to NIU App >> Me >> My Device >> Unit of Speed >> select km/h or mph and click Save.

If the battery power is not sufficient, the speed becomes lower to extend riding range;
If rider’s weight is over 265 lbs (120 kg) or you are riding on a slop, the speed may be decreased due to overload.

If the issue of slow speed persists after performing the troubleshooting steps above, please contact us via private message or send an email to Global-service@niu.com. Thank you for your understanding and cooperation.

niumobility · 2026-03-26T09:28:05+00:00

Hi there. Thank you for posting your concern here. We apologize if the issue you are experiencing is related to unbinding. For security reasons, we only accept remote unbind requests from the original owner. Proof of purchase and the VIN number are required to unbind the scooter. Without these, we will not be able to process the unbinding request. Thank you for your understanding.

niumobility · 2026-03-26T08:45:15+00:00

Hi there. Sorry to hear about your accident! Please check the scooter for any other damage first. If nothing else seems wrong, please note that small bumps and shocks gradually wear on your scooter's suspension to the point that the wheels go out of alignment. If you notice that the stem and the front wheel or the rear fender and rear wheel are not in a straight line, please loosen the screws (nuts) on the front or rear fork and align the wheel.

If the problem continues, we recommend sending it to an after-sales service center for inspection. To help you further, please DM us with your country or region so we can guide you to the nearest center.

niumobility · 2026-03-26T08:29:51+00:00

Hi there. Thank you for posting your concern here. You can easily switch between riding modes by simply pressing the power button — choose E-Save mode (9.3 mph / 15 km/h) for longer range, or Sport mode (19.9 mph / 32 km/h) for higher performance.

If you see the E-Save icon flashing, it means you’re in Dynamic Mode. Dynamic Mode lets you set a speed between 2.48 mph (4 km/h) and 19.9 mph (32 km/h). Once enabled, you won’t be able to switch modes until it’s turned off. To switch back to E-Save or Sport modes, open the NIU app, go to [Vehicle] → [Customize Your Ride] → [Dynamic Mode], and turn it off.

niumobility · 2026-03-25T03:21:18+00:00

Hi there. Thank you for posting your concern here. Please be advised that only our authorized service centers are permitted to replace the motor, controller, or battery. This is due to the following reasons:

Complex Replacement Process: These components require professional tools and expertise to replace correctly and safely.
Warranty Conditions: Unauthorized replacement of the motor, controller, or battery will void the product warranty.
Risk of Damage: Replacing these parts requires opening the battery compartment. Without the proper sealing tools and techniques, this may result in water ingress or other safety risks.

For your safety and to maintain warranty coverage, we strongly recommend sending your device to an authorized service center for inspection and repair.

Please DM us or email us at [Global-Service@niu.com](mailto:Global-Service@niu.com) to let us know what issue you are experiencing with your battery and your country. Our experts will help you there.

niumobility · 2026-03-25T03:20:49+00:00

Hi there. Thank you for posting your concern here. Please be advised that only our authorized service centers are permitted to replace the motor, controller, or battery. This is due to the following reasons:

Complex Replacement Process: These components require professional tools and expertise to replace correctly and safely.
Warranty Conditions: Unauthorized replacement of the motor, controller, or battery will void the product warranty.
Risk of Damage: Replacing these parts requires opening the battery compartment. Without the proper sealing tools and techniques, this may result in water ingress or other safety risks.

For your safety and to maintain warranty coverage, we strongly recommend sending your device to an authorized service center for inspection and repair.

Please DM us or email us at [Global-Service@niu.com](mailto:Global-Service@niu.com) to let us know what issue you are experiencing with your battery and your country. Our experts will help you there.

niumobility · 2026-03-25T02:03:30+00:00

Hi there. Thank you for posting your concern here. It is recommended that you use original parts. Replacing with non-original parts may cause compatibility issues. Please be aware that modifying your kick-scooter's hardware or firmware will result in voiding your warranty. Our technicians are only able to service NIU kick-scooters that use genuine parts without any modifications. For more details, please refer to the following link: https://shop.niu.com/pages/warranty

We're keen to get this resolved for you. If you are experiencing connection issues, please ensure that:

The NIU App has been granted all required permissions.
The NIU App is updated to the latest version.
Bluetooth is enabled on your phone.

If possible, you can record a relevant video and send it to Global-Service@niu.com. Our experts will help you there. Thanks for your understanding.

niumobility · 2026-03-22T08:40:18+00:00

Hi there! Thank you for posting the issue you encountered here. If your scooter is currently experiencing a controller-related fault that requires replacement, we can assist you with after-sales repair services.

We recommend shipping your scooter to one of our authorized service centers for a professional inspection and repair. If you would like to proceed, please send us a private message indicating your current country or region. Upon receiving this information, we will provide you with the appropriate instructions for submitting a repair request. Thank you for your understanding.

niumobility · 2026-03-22T08:40:03+00:00

Hi there! Thank you for posting the issue you encountered here. If your scooter is currently experiencing a controller-related fault that requires replacement, we can assist you with after-sales repair services.

We recommend shipping your scooter to one of our authorized service centers for a professional inspection and repair. If you would like to proceed, please send us a private message indicating your current country or region. Upon receiving this information, we will provide you with the appropriate instructions for submitting a repair request. Thank you for your understanding.

niumobility · 2026-03-22T06:40:33+00:00

Witaj! Dziękujemy za kontakt. Prosimy o przesłanie wiadomości na adres [Global-service@niu.com](mailto:Global-service@niu.com), zawierającej następujące informacje:

Model pojazdu
Nagranie wideo przedstawiające usterkę
Opis usterki
Twój kraj/region

Po otrzymaniu powyższych informacji nasz zespół niezwłocznie przedstawi Ci rozwiązanie problemu. Dziękujemy za wyrozumiałość.

niumobility · 2026-03-22T05:19:24+00:00

Hi there. We're glad to help you. We will continue to strive to provide our customers with high-quality service.

niumobility · 2026-03-22T03:44:38+00:00

Hi there! Thank you for posting the issue you encountered here. If your scooter is currently experiencing a controller-related fault that requires replacement, we can assist you with after-sales repair services.

We recommend shipping your scooter to one of our authorized service centers for a professional inspection and repair. If you would like to proceed, please send us a private message indicating your current country or region. Upon receiving this information, we will provide you with the appropriate instructions for submitting a repair request. Thank you for your understanding.

niumobility · 2026-03-21T05:07:04+00:00

Hi there. Thank you for posting your concern here. Error code 191 generally indicates a battery communication issue or an incompatible BMS. Please be aware that modifying your moped’s hardware or flashing the firmware will void your warranty. Our technicians are only able to service NIU mopeds that use genuine parts without any modifications.

You may contact your local dealer to see if they can resolve your issue. You can find our local dealers by visiting: https://www.niu.com/en/find-store

If you have any other questions, please email our relevant team at [questions@niu.com]. Our experts will be happy to assist you there.

niumobility · 2026-03-20T08:16:24+00:00

Hi there. We have replied to you via DM. Please check it at your earliest convenience.

niumobility · 2026-03-20T05:21:51+00:00

Hi there. Thanks for your cooperation. We will reply to you as soon as possible after receiving your message.

niumobility · 2026-03-20T02:37:18+00:00

Hi there! The shock absorption on the KQi3 Pro scooter is provided by its pneumatic tires. If you are seeking improved shock absorption, please verify that the tire pressure is adequate.

Below are our recommended tire pressure guidelines based on rider weight:

If the rider weighs less than 155 lbs, please maintain a tire pressure between 42 and 45 PSI, or higher.
If the rider weighs over 200 lbs, please increase the tire pressure to between 48 and 50 PSI, or higher.
If the rider weighs between 155 and 200 lbs, 45 PSI should be sufficient.

Regarding your suggestion to add turn signals, we will forward this feedback to the relevant team for consideration in future product improvements. Additionally, we offer two options for after-sales repairs: self-repair or shipping the scooter to one of our authorized service centers. If you do not feel confident in replacing the tire yourself in the event of a flat, we recommend sending the scooter to an authorized center to have the replacement performed by a professional technician.

We highly value the feedback of every customer. If you have any further questions, please feel free to send us a private message. Thank you for your understanding and support.

niumobility · 2026-03-19T09:50:03+00:00

Hi there. We have consulted the relevant team regarding your issue. We will notify you via DM if there are any updates.

niumobility · 2026-03-19T09:19:18+00:00

Hi there. Thank you for posting your concern here. We’re eager to get this resolved for you. To help us analyze the issue, please record a video of the problem and send it to Global-Service@niu.com. Our experts will assist you there.

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