Introduction
This manual provides instructions for the installation, operation, and maintenance of your Generic phone case, model CSKB-HEI, designed for the Kruger Matz Smartfon Flow 7s. Please read this manual carefully to ensure proper use and to maximize the benefits of your new phone case.
Product Features
- 360° Rotatable Ring Holder: Integrated ring stand for comfortable viewing and secure grip.
- Magnetic Car Mount Compatibility: Designed to attach directly to magnetic car mount holders (mount not included).
- Durable Material: Constructed from a combination of PC backplane and soft silicone frame for enhanced protection.
- Shockproof Design: Features thickened four corners and a silicone buffer layer to protect against drops and impacts.
- Precision Cutouts: Ensures full access to all ports, buttons, and speakers of the Kruger Matz Smartfon Flow 7s.
- Stylish Finish: High-definition pattern printing with a marble texture design.
Setup and Installation
Follow these steps to properly install the phone case on your Kruger Matz Smartfon Flow 7s:
- Ensure your phone is clean and free of dust or debris.
- Align the phone with the case, starting with one side.
- Gently press the phone into the case, ensuring all corners and edges are securely fitted.
- Verify that all ports, buttons, and camera cutouts align correctly with your phone.

Image: The phone case, model CSKB-HEI, showcasing its design and integrated ring holder.
Operating Instructions
Using the 360° Rotatable Ring Holder
The integrated ring holder provides a secure grip and acts as a kickstand for hands-free viewing.
- To use as a grip: Slide your finger through the ring for a more secure hold on your phone.
- To use as a kickstand: Pull out the ring and rotate it to your desired angle to prop up your phone horizontally or vertically for media consumption or video calls.

Image: Illustration demonstrating how the 360° rotatable ring holder improves one-hand operation and reach on the phone screen.
Magnetic Car Mount Function
The case is designed with a metal plate integrated into the ring holder mechanism, allowing it to attach to magnetic car mount holders.
- Simply place the back of your phone case onto a compatible magnetic car mount. The case will adhere directly without the need for additional patches.
- Ensure the magnetic car mount is securely installed in your vehicle before attaching your phone.
- Note: A magnetic car mount holder is not included with this product. This case does not support wireless charging due to the integrated metal ring.

Image: Visual representation of the phone case's compatibility with a magnetic car mount, highlighting the direct adsorption feature.
Maintenance and Care
To keep your phone case in optimal condition, follow these care instructions:
- Cleaning: Wipe the case regularly with a soft, damp cloth to remove dust and fingerprints. Avoid using harsh chemicals or abrasive cleaners.
- Avoid Extreme Temperatures: Do not expose the case to extreme heat or cold, as this may affect its material integrity.
- Inspection: Periodically inspect the case for any signs of wear or damage, especially around the ring holder and corners.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| Case does not fit properly. | Ensure you have the correct model case for the Kruger Matz Smartfon Flow 7s. Re-align and gently press the phone into the case, ensuring all edges are seated. |
| Ring holder feels stiff or loose. | The ring holder is designed for a specific tension. If it becomes excessively loose or stiff over time, it may indicate wear. |
| Magnetic car mount not holding. | Ensure your car mount is a strong magnetic type. Clean both the case and the car mount surface to ensure good contact. |
Specifications
| Feature | Detail |
|---|---|
| Model | CSKB-HEI |
| Compatible Phone Model | Kruger Matz Smartfon FLOW 7s |
| Material | PC backplane + Silicone Soft Frame (Polyurethane) |
| Product Dimensions | 0.39 x 0.39 x 0.39 inches (L x W x H) |
| Item Weight | 2.46 ounces |
| Special Features | 360° Rotatable Ring Holder, Magnetic Car Mount Compatibility, Shockproof Design |

Image: Detail of the case's shockproof design, featuring reinforced corners and a silicone buffer layer for impact protection.
Warranty and Support
For any questions, concerns, or support regarding your Generic phone case, please contact the retailer or manufacturer directly. Please refer to your purchase documentation for specific warranty details.





