Tangxi 4G LTE USB Dongle Instruction Manual

1. Introduction

This manual provides essential information for the proper setup, operation, and maintenance of your Tangxi 4G LTE USB Dongle. This device functions as a portable USB modem and hotspot router, enabling high-speed 4G internet access for multiple devices.

Please read this manual thoroughly before using the product to ensure optimal performance and safety.

2. Product Overview

The Tangxi 4G LTE USB Dongle is designed for convenient and stable internet connectivity. It supports multiple 4G networks and allows internet sharing for up to 10 users simultaneously.

Key Features:

• Stable High-Speed Internet: Provides fast and reliable 4G LTE internet access.
• Multi-Device Support: Connects up to 10 devices simultaneously, including cell phones, laptops, computers, and smart TVs.
• Plug and Play: Simple setup by inserting a SIM card and connecting to a USB power source.
• Portable Design: Compact and powered by standard USB ports (phone chargers, car chargers, mobile power banks).
• Enhanced Security: Features WPA/WPA2 encryption to protect your network.

Product Components:

The device consists of a main body with a USB connector and a SIM card slot. The product label provides essential network information.

Image: The Tangxi 4G LTE USB Dongle, shown connected to a laptop, illustrating its compact form factor and USB interface.

Image: A graphic illustrating the multi-protection features of the USB dongle, emphasizing network security.

3. Setup Instructions

Follow these steps to set up your Tangxi 4G LTE USB Dongle:

1. Insert SIM Card: Locate the SIM card slot on the dongle. Carefully insert a compatible 4G SIM card into the slot until it clicks into place. Ensure the SIM card is correctly oriented.

Image: A detailed view of the SIM card slot on the USB dongle, showing the correct insertion method.
2. Connect to Power: Plug the USB dongle into any standard USB power source. This can be a phone charger, car charger, mobile power bank, or a USB port on a computer.


Image: The product label on the USB dongle, displaying the default SSID, password, and web interface IP address for initial setup.

3. Automatic Connection: The device is plug and play. Once powered on with a valid SIM card, it will automatically detect the 4G network and establish an internet connection.
4. Access Network Details: The default Wi-Fi network name (SSID) and password (PWD) are typically printed on a label on the device itself. Use these credentials to connect your devices.

4. Operating Instructions

Once the dongle is set up and connected to the internet, you can begin using it to provide Wi-Fi access to your devices.

1. Connect Devices: On your Wi-Fi enabled device (e.g., smartphone, laptop), search for available Wi-Fi networks. Select the SSID corresponding to your Tangxi dongle (found on the device label).
2. Enter Password: Input the Wi-Fi password (PWD) provided on the dongle's label when prompted.
3. Enjoy Internet Access: Your device should now be connected to the internet via the 4G LTE USB Dongle. The dongle supports up to 10 simultaneous connections.


Image: An illustration showing multiple devices, including phones, tablets, and laptops, connected to the internet via the dongle.



Image: Multiple individuals using their devices, demonstrating the dongle's capability to support several users simultaneously.

4. Optimal Placement: For the best signal strength and coverage, place the dongle in an open area, away from obstructions and other electronic devices that may cause interference.

Image: A visual representation of Wi-Fi signal propagation from the dongle within a typical indoor setting, indicating coverage area.

5. Maintenance

To ensure the longevity and proper functioning of your Tangxi 4G LTE USB Dongle, follow these maintenance guidelines:

• Keep Clean: Regularly wipe the device with a soft, dry cloth. Avoid using liquid cleaners or abrasive materials.
• Avoid Extreme Conditions: Do not expose the dongle to extreme temperatures, direct sunlight, high humidity, or dusty environments.
• Handle with Care: Avoid dropping the device or subjecting it to strong impacts.
• Proper Storage: When not in use, store the dongle in a cool, dry place.

6. Troubleshooting

If you encounter issues with your Tangxi 4G LTE USB Dongle, refer to the following troubleshooting tips:

• No Internet Connection:
  • Ensure the SIM card is correctly inserted and active with a data plan.
  • Verify the dongle is properly powered via a stable USB source.
  • Check if your location has 4G network coverage.
  • Restart the dongle by unplugging and re-plugging it.
• Cannot Connect to Wi-Fi:
  • Confirm you are using the correct SSID and password printed on the dongle.
  • Ensure your device's Wi-Fi is enabled.
  • Move closer to the dongle to improve signal strength.
• Slow Internet Speed:
  • Reduce the number of connected devices.
  • Relocate the dongle to an area with better 4G signal reception.
  • Check your data plan for any speed limitations or data caps.

If problems persist, please contact customer support for further assistance.

7. Specifications

8. Safety Information

Please observe the following safety precautions:

• Do not attempt to disassemble or modify the device. This may void the warranty and pose safety risks.
• Keep the device away from water, fire, and flammable materials.
• Use only compatible power sources.
• Dispose of the device and its components responsibly according to local regulations.

9. Warranty and Support

This product is covered by a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or contact the retailer.

For technical support, troubleshooting assistance, or any product-related inquiries, please contact Tangxi customer service. Contact information can typically be found on the product packaging or the official Tangxi website.