Xininyia JYouPro G28 G20 Charger
Xininyia Magnetic Smart Watch Charger User Manual
For Mingdaln JYouPro G28 & G20 Smart Watches
Introduction
Thank you for choosing the Xininyia Magnetic Smart Watch Charger. This 2-pack charging cable is designed to provide efficient and safe charging for your Mingdaln JYouPro G28 and G20 smartwatches. Please read this manual carefully to ensure proper use and maintenance of your charger.

Image: Two Xininyia magnetic smart watch charging cables, each featuring a USB-A connector on one end and a magnetic charging puck with two contact pins on the other. The cables are black and coiled neatly.
Product Features
- Efficient Fast Charging: Optimized circuit design for stable current and voltage output.
- Strong Magnetic Design: Built-in pure copper probe with solid magnetic power for secure attachment.
- Short-Circuit Protection: Multiple protection mechanisms against overheating and damage.
- Durable Construction: Made from ABS material and flexible PVC, tested for over 5000+ bends.
- Portable Design: Lightweight and compact for easy travel.
- Eco-Friendly: High efficiency conversion circuit and low power standby mode reduce energy consumption.
Setup
To begin charging your smartwatch, follow these steps:
- Connect to Power Source: Plug the USB-A end of the charging cable into a compatible USB power source. This can be a computer, laptop, power bank, or a wall charger with a USB port.
- Prepare Smartwatch: Ensure your Mingdaln JYouPro G28 or G20 smartwatch is clean and free of debris on its charging contacts.

Image: An illustration demonstrating how to connect the smart watch charger. The charger is shown plugged into a laptop, with other compatible power sources like a computer, power bank, and wall charger depicted around it.
Operating Instructions
Properly connecting the magnetic charger to your smartwatch is crucial for successful charging.
- Attach Charger: Bring the magnetic charging puck close to the charging contacts on the back of your smartwatch. The magnets will automatically align the charger.
- Verify Connection: If the charging magnets repel or do not attach securely, the watch will not charge. In this case, gently rotate the charging puck 180 degrees and try again. The charging pins must align correctly with the watch's contacts.
- Charging Indicator: Once successfully connected, your smartwatch display should show a charging icon or battery percentage increase. Charging typically takes 2-3 hours for a full charge.

Image: A sequence of three images illustrating smartwatch charging. The first shows incorrect magnetic repulsion, preventing charging. The second shows the charger being rotated for correct alignment. The third shows a successful connection with the smartwatch displaying a charging indicator (72% battery).

Image: An illustration highlighting safe and fast charging. It shows a USB charger with a "Short Circuit Protection" icon, a smartwatch charging with a visual indicator, and a clock icon indicating a 2-3 hour charging time.
Maintenance
- Cleaning: Keep the magnetic charging contacts on both the cable and your smartwatch clean and dry. Use a soft, dry cloth to wipe away any dust or debris.
- Storage: When not in use, store the charging cable in a cool, dry place, away from direct sunlight and extreme temperatures. Avoid tangling the cable.
- Handling: Do not pull the cable forcefully from the USB port or the smartwatch. Always grasp the connector ends.
- Inspection: Periodically inspect the cable for any signs of damage, such as frayed wires or bent pins. Discontinue use if damage is observed.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Smartwatch not charging. | Incorrect magnetic alignment or polarity. | Rotate the magnetic charging puck 180 degrees to ensure correct pin alignment. |
| Smartwatch not charging. | Dirty or obstructed charging contacts. | Clean the charging contacts on both the cable and the smartwatch with a soft, dry cloth. |
| Smartwatch not charging. | Faulty USB power source. | Try plugging the charger into a different USB port or power adapter. |
| Slow charging. | Low power output from USB source. | Use a certified USB wall adapter (e.g., 5V/1A) for optimal charging speed. |
| Charger feels warm during use. | Normal operation. | A slight warmth is normal. If it becomes excessively hot, discontinue use and contact support. |
Note: If the magnet attaches but the device doesn't charge, it may be that the poles (+/-) of the charging pin don't match. Please contact us for assistance if this issue persists, as other compatible chargers may be available.
Specifications

Image: A detailed breakdown of the charger's construction. It highlights the pure copper probe for sensitive contact and fast charging, the N52 magnet for strong and durable connection, the ABS+PC material for safety and durability, the flexible PVC cable for easy rolling and storage, the USB interface with multiple functional protections, and the internal structure of the pure copper wire core with wire mesh, aluminum foil, ground wire, and oxygen-free copper.
- Brand: Xininyia
- Compatible Devices: Mingdaln JYouPro G28, Mingdaln JYouPro G20 Smart Watches
- Connector Type: USB Type A (Male) to Magnetic 2-Pin (Male)
- Cable Length: 60 cm (approximately 23.6 inches)
- Material: ABS+PC casing, Flexible PVC cable, Pure Copper probe, N52 Magnet
- Special Features: Shock-resistant, Short-circuit protection, Over-voltage protection, Over-current protection
- Certification: RoHS, CE (as per product description)
- Color: Black
- Unit Count: 2 chargers per package
- Item Weight: Approximately 0.704 ounces (per charger)
Warranty and Support
This product comes with a standard return policy. For specific warranty details or technical support, please refer to the seller's information on the purchase platform or contact Xininyia customer service directly.
If you encounter any issues not covered in this manual, or if the troubleshooting steps do not resolve your problem, please reach out to the seller for further assistance.