1. Introduction
This document provides essential information for the proper use and care of your nubia Pad SE Magnetic Adsorption Protective Case, model K99J-CASE. This case is designed to offer lightweight protection and convenient functionality for your nubia Pad SE tablet through its magnetic attachment system.
2. Setup and Installation
The nubia Pad SE Magnetic Adsorption Protective Case is designed for easy installation using a magnetic attachment system. No clips or adhesives are required.
2.1 Attaching the Case
- Ensure your nubia Pad SE tablet is clean and free of dust or debris on its back surface.
- Align the back of the protective case with the back of your nubia Pad SE tablet. The case is designed to fit precisely around the tablet's camera module and ports.
- Gently bring the case into contact with the tablet. The integrated magnets will automatically align and secure the case to the tablet's back.

Image: The nubia Pad SE tablet with the magnetic protective case securely attached.
Verify that the case is firmly attached and all edges are flush with the tablet. The magnetic connection on the back is designed to be secure.
3. Operating and Usage
The protective case offers both screen protection and a convenient stand function.
3.1 Screen Protection
When closed, the front cover protects the tablet's screen from scratches and minor impacts. The cover may utilize magnets to trigger the tablet's sleep/wake function when opened or closed.
3.2 Stand Function
The front cover features a tri-fold design, allowing it to be folded into a triangular stand. This provides a stable viewing angle for media consumption or typing.

Image: The case folded into a stand for horizontal viewing.

Image: Another view of the case functioning as a stand.
To use the stand function:
- Open the front cover.
- Fold the cover along its creases to form a triangular shape.
- Rest the tablet on the folded cover to achieve the desired viewing angle. Note that the stand offers fixed angles and does not allow for arbitrary angle adjustments.

Image: Close-up of the case's stand configuration.
4. Maintenance
Proper maintenance ensures the longevity and appearance of your protective case.
4.1 Cleaning
- To clean the exterior of the case, gently wipe it with a soft, damp cloth.
- Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the material.
- For stubborn stains, a mild soap solution can be used, followed by wiping with a clean, damp cloth. Ensure the case is completely dry before reattaching it to the tablet.
4.2 General Care
- Avoid exposing the case to extreme temperatures or direct sunlight for prolonged periods, which can cause material degradation or discoloration.
- Do not bend or twist the case excessively, as this may weaken its structure or magnetic components.
- Keep the case away from sharp objects to prevent scratches or punctures.
5. Troubleshooting
If you encounter any issues with your protective case, refer to the following common solutions:
- Case not adhering properly: Ensure both the tablet's back and the case's magnetic surface are clean and free of obstructions. Realign the case carefully.
- Front cover feels loose or dangles: The front cover's magnetic closure may have limited strength. Ensure the cover is fully closed and aligned. Avoid holding the tablet by the front cover alone.
- Tablet screen unexpectedly turns OFF/ON: This can occur if the case's magnets interfere with the tablet's internal sensors. Ensure the case is correctly aligned. If the issue persists, try removing and reattaching the case. If the problem only occurs when the front cover is folded back, try adjusting how the cover is positioned or consider using the tablet without folding the cover completely back if this feature is causing interference.
- Stand function is unstable: Ensure the tri-fold cover is correctly folded into a stable triangular shape. Place the tablet on a flat, stable surface.
If these steps do not resolve your issue, please contact nubia customer support.
6. Specifications
| Model Name | K99J-CASE |
| Brand | nubia |
| Compatible Device | nubia Pad SE |
| Form Factor | Protective Case |
| Product Weight | 370 g |
| Package Dimensions | 30.7 x 19 x 2.4 cm |
| Color | Dark Grey (as depicted in product images) |
7. Warranty and Support
Warranty information for the nubia Pad SE Magnetic Adsorption Protective Case is typically provided at the point of purchase or can be found on the official nubia website. Please retain your proof of purchase for warranty claims.
For further assistance, technical support, or inquiries regarding your product, please visit the official nubia support page or contact their customer service department through the contact information provided on their website.
Official nubia Store: nubia Store on Amazon.co.jp





