Introduction
This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your MERCUSYS MT110 Mobile WiFi Router. Please read this manual carefully before using the device to ensure proper and safe operation.
The MERCUSYS MT110 is a portable 4G LTE Cat4 mobile Wi-Fi router designed to provide internet access on the go. It supports download speeds of up to 150Mbps and allows up to 10 devices to connect simultaneously.
Package Contents
Verify that all items are present in your package:
- MERCUSYS MT110 Mobile Wi-Fi Router
- Micro USB Cable
- Quick Installation Guide
Device Overview

Figure 1: MERCUSYS MT110 Mobile WiFi Router and its retail box. The device is a compact black unit with LED indicators on top, designed for portable internet access.

Figure 2: Top view of the MT110 router, highlighting the Nano SIM Card slot, Micro USB charging port, and power button. A reset pinhole is also visible.
The MT110 features a compact design with essential ports and indicators for easy use.
- LED Indicators: Display Wi-Fi status, signal strength, and battery level.
- Nano SIM Card Slot: For inserting your 4G SIM card.
- Micro USB Port: Used for charging the device.
- Power Button: To turn the device on or off.
- Reset Pinhole: To restore factory settings.
Setup
1. Inserting the SIM Card
- Ensure the device is powered off.
- Locate the Nano SIM Card slot on the top of the device.
- Insert your Nano SIM card into the slot with the gold contacts facing down and the notched corner aligned as shown in the diagram. Push until it clicks into place.

Figure 3: Illustration demonstrating the correct orientation for inserting the Nano SIM card into the MT110's dedicated slot.
2. Charging the Device
Before first use, fully charge the MT110. Connect the provided Micro USB cable to the device's charging port and the other end to a USB power adapter (not included) or a computer's USB port.
- The battery LED indicator will show charging status.
- A full charge typically takes approximately 2.5 to 3 hours.

Figure 4: The MT110 is designed for extended use, featuring a 2200mAh battery that provides up to 10 hours of operation, suitable for both day and night usage.
3. Powering On/Off
- To Power On: Press and hold the Power button for approximately 3 seconds until the LED indicators light up.
- To Power Off: Press and hold the Power button for approximately 3 seconds until the LED indicators turn off.
Operating the Device
1. Connecting to Wi-Fi
Once the MT110 is powered on and has established a 4G connection (indicated by the signal LED), you can connect your devices:
- On your Wi-Fi enabled device (smartphone, tablet, laptop), open the Wi-Fi settings.
- Search for available Wi-Fi networks. The default network name (SSID) and password are usually printed on a label inside the battery compartment or on the device itself.
- Select the MT110's SSID and enter the password to connect.

Figure 5: The MT110 supports connecting up to 10 Wi-Fi devices simultaneously, making it ideal for sharing internet with friends or multiple personal devices.
2. Managing the Device via MERCUSYS App
For advanced management and monitoring, download the MERCUSYS app from your device's app store. The app allows you to:
- View signal strength and battery life.
- Change Wi-Fi name (SSID) and password.
- Monitor connected devices.
- Set data limits.
- Manage SMS messages (if supported by your SIM card).
Refer to the Quick Installation Guide for initial app setup and login details.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use liquid cleaners or aerosols.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in use for extended periods.
- Firmware Updates: Check the MERCUSYS app or official website periodically for firmware updates. Keeping your device's firmware updated ensures optimal performance and security.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| No internet connection. |
|
| Cannot connect to Wi-Fi. |
|
| Slow internet speed. |
|
| Battery drains quickly. |
|
Specifications
| Feature | Detail |
|---|---|
| Model | MT110 |
| Dimensions | 11.1 x 7 x 2.4 cm |
| Weight | 120 grams |
| Battery Capacity | 2200 mAh Lithium-Ion (included) |
| Network Type | 4G LTE Cat4 (FDD/TDD-LTE) |
| Download Speed | Up to 150 Mbps |
| Upload Speed | Up to 50 Mbps |
| Wireless Standard | 802.11n |
| Wi-Fi Frequency | 2.4 GHz |
| Max Connected Devices | 10 |
| SIM Card Type | Nano SIM |
| Charging Port | Micro USB |
| Operating System Compatibility | RouterOS (internal), compatible with PC, Smartphone, Tablet |
Warranty and Support
MERCUSYS products come with a limited warranty. Please refer to the warranty card included in your package or visit the official MERCUSYS website for detailed warranty terms and conditions specific to your region.
For technical support, product registration, or to download the latest firmware and drivers, please visit the official MERCUSYS support website:
You can also contact MERCUSYS customer service through the contact information provided on their website.