Introduction
This manual provides detailed instructions for setting up, operating, and maintaining your STRONG 4G LTE Router 350M. Please read this manual thoroughly before using the device to ensure proper functionality and safety.
The STRONG 4G LTE Router 350M is designed to provide high-speed internet access using a 4G LTE SIM card, creating a Wi-Fi hotspot for multiple devices. It supports LTE speeds up to 150 Mbit/s and Wi-Fi speeds up to 300 Mbit/s on the 2.4 GHz band, compliant with 802.11b/g/N standards.
Package Contents
Before you begin, please verify that all items are present in the package:
- 1x STRONG 4G LTE Router 350M
- 2x External 4G LTE Antennas
- 1x Ethernet Cable (RJ45)
- 1x Power Adapter
- 1x Standard Micro SIM Card Adapter
- 1x Nano to Micro SIM Card Adapter
- Quick Installation Guide (QIG)
- Safety and Warranty Card

Image showing the STRONG 4G LTE Router 350M and its included accessories: router unit, two external antennas, Ethernet cable, power adapter, and SIM card adapters.
Setup Instructions
1. Insert SIM Card
- Ensure the router is powered off.
- Locate the SIM card slot on the router.
- Insert your 4G LTE SIM card into the slot. Use the provided SIM card adapters if your SIM card is Nano or Micro size to fit the standard slot.
- Ensure the SIM card is correctly oriented and fully inserted until it clicks into place.

Image illustrating the SIM card slot on the router and the use of SIM card adapters for compatibility with various SIM card sizes.
2. Attach External Antennas
- Locate the two SMA connectors on the back of the router.
- Screw the two external 4G LTE antennas onto these connectors. Tighten them securely but do not overtighten.
- Adjust the antennas for optimal signal reception.

Image demonstrating how to connect the two external antennas to the router's SMA connectors.
3. Connect Power
- Connect the power adapter to the DC IN port on the router.
- Plug the power adapter into a standard electrical outlet.
- The router will automatically power on.
4. Initial Configuration (Optional)
For initial setup or advanced configuration, you can connect a computer to the router using the provided Ethernet cable. Plug one end into the LAN port on the router and the other into your computer's Ethernet port. Alternatively, connect wirelessly using the default Wi-Fi credentials found on the router's label.
Operating Instructions
Powering On and Off
The router powers on automatically when connected to a power source. To power off, disconnect the power adapter from the electrical outlet.
Connecting to Wi-Fi
- Ensure the router is powered on and the Wi-Fi indicator light is active.
- On your device (smartphone, laptop, tablet), search for available Wi-Fi networks.
- Select the network name (SSID) corresponding to your STRONG 4G LTE Router 350M. The default SSID and password are usually printed on a label on the bottom or back of the router.
- Enter the Wi-Fi password when prompted.
- Once connected, your device should have internet access via the 4G LTE network.
The router supports Wi-Fi 2.4 GHz at 300 Mbit/s and can connect up to 32 devices simultaneously.
Using the LAN Port
The router includes one Ethernet LAN port. You can use this port to connect wired devices such as Smart TVs, desktop computers, gaming consoles, or other network devices directly to the router for a stable wired connection.
Security Features
The router supports WPA/WPA2TM encryption for optimal Wi-Fi security. It also features a "Connect & Secure" button for quick Wi-Fi setup and full PIN control for SIM card management.

Image highlighting key features of the router, including 150 Mbit/s LTE, 300 Mbit/s Wi-Fi, 2x 4G LTE antennas, Ethernet port, and 2x SIM card adapters.
Maintenance
Cleaning
To clean the router, use a soft, dry cloth. Do not use liquid cleaners or aerosol sprays, as these can damage the device. Ensure the router is powered off and unplugged before cleaning.
Placement
Place the router in a central location in your home or office, away from obstructions and sources of interference (e.g., microwaves, cordless phones). This helps ensure optimal Wi-Fi coverage and signal strength. Avoid placing it in direct sunlight or near heat sources.
Firmware Updates
Periodically check the manufacturer's website for firmware updates. Keeping your router's firmware up-to-date can improve performance, security, and add new features. Follow the instructions provided by the manufacturer for any update process.
Troubleshooting
No Internet Connection
- Check SIM Card: Ensure the SIM card is correctly inserted and activated with a data plan.
- Signal Strength: Verify the 4G LTE signal indicator on the router. If the signal is weak, try repositioning the router or adjusting the external antennas.
- Reboot Router: Disconnect the power adapter, wait 10 seconds, then reconnect it.
- Check APN Settings: Access the router's web interface (usually via a browser, IP address found on the router label) and verify that the Access Point Name (APN) settings are correct for your mobile operator.
Wi-Fi Connection Issues
- Incorrect Password: Double-check the Wi-Fi password.
- Router Range: Ensure your device is within the Wi-Fi range of the router.
- Interference: Move the router away from other electronic devices that might cause interference.
- Too Many Devices: If many devices are connected, some might experience slower speeds or disconnections.
Slow Internet Speed
- 4G LTE Signal: A weak 4G LTE signal will result in slower speeds.
- Network Congestion: Mobile network speeds can vary based on network traffic and location.
- Device Limitations: Ensure your connected devices support the Wi-Fi standards (802.11n) for optimal performance.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 4GROUTER350M |
| Brand | Strong |
| 4G LTE Speed | Up to 150 Mbit/s (Download) |
| Wi-Fi Speed | 2.4 GHz @ 300 Mbit/s |
| Wi-Fi Standards | 802.11b/g/N |
| Frequency Band | Quadri-bande (2.4 GHz Wi-Fi) |
| LAN Ports | 1x Ethernet LAN Port |
| Antennas | 2x External Detachable 4G LTE Antennas (SMA connectors), 2x Internal Wi-Fi Antennas |
| SIM Card Support | Standard SIM slot with Micro and Nano SIM adapters included |
| Security Protocols | WPA-PSK, WPA/WPA2TM |
| Power Input | 12 Volts |
| Dimensions (L x W x H) | 19 x 5.7 x 14 cm |
| Weight | 204 Grams |
| Recommended Usage | Home |
| Compatible Devices | Gaming Console, Personal Computer, Smartphone |

Image displaying the physical dimensions of the router: approximately 21.8 cm height (with antennas), 13.4 cm width, and 10.4 cm depth.
Warranty Information
The STRONG 4G LTE Router 350M comes with a limited manufacturer's warranty. Please refer to the included Safety and Warranty Card for specific terms, conditions, and duration of the warranty in your region. Keep your proof of purchase for warranty claims.
The manufacturer does not guarantee software updates beyond an unspecified period. Information regarding spare parts availability is also not provided.
Customer Support
If you encounter any issues that cannot be resolved using the troubleshooting guide, or if you require further assistance, please contact Strong customer support. You can typically find contact information (phone numbers, email, or support website) on the manufacturer's official website or in the documentation included with your product.
When contacting support, please have your product model number (4GROUTER350M) and purchase details ready.







