Huawei E5785-320

Huawei E5785-320 4G LTE Cat6 Mobile WiFi Router User Manual

Model: E5785-320 / E5785-320a

1. Introduction

The HUAWEI E5785-320 Mobile WiFi (hereinafter referred to as the E5785-320) is a high-speed packet access mobile hotspot. It is a multi-mode wireless terminal designed for SOHO (Small Office and Home Office) and business professionals.

This device provides users with packet data services and SMS through multiple network modes. You can connect the micro USB port on the E5785-320 to a computer using a micro USB data cable, or connect multiple devices to the E5785-320 over Wi-Fi. In the service area of the network, the E5785-320 allows you to surf the Internet and send/receive messages/emails, providing you with a fast, reliable, and convenient user experience.

Front view of Huawei E5785-320 mobile WiFi router in black and white.
Figure 1-1: Appearance of the E5785-320 Mobile WiFi (black and white models shown).

2. Package Contents

Please check the package contents upon unboxing:

  • 1x HUAWEI E5785-320 or E5785-320a Mobile WiFi Router
  • 1x USB cable
  • Neutral packing materials

Note: Due to different operators worldwide, the modem/router may feature various logos. The specific logo on your device may vary.

3. Product Overview

The Huawei E5785-320 features a compact design with essential components for mobile connectivity.

3.1 Physical Features

  • Display: 1.45 inch LCD display for status information.
  • Buttons: Power button, RESET button, MENU button.
  • External Ports: Micro USB port (for charging and data connection), Micro-SIM card slot (3FF).
  • Antenna: Built-in LTE/UMTS main antenna, Built-in LTE/UMTS diversity antenna, Built-in WLAN antenna.
Internal view of Huawei E5785-320 with back cover removed, revealing battery compartment and micro-SIM card slot.
Figure 3-1: Rear view with cover removed, showing battery and Micro-SIM slot.

4. Setup

4.1 SIM Card Installation

  1. Remove the back cover of the device.
  2. Locate the Micro-SIM card slot.
  3. Insert your Micro-SIM card into the slot with the gold contacts facing down and the notched corner aligned correctly.
  4. Ensure the SIM card is securely seated.

4.2 Battery Installation

  1. After installing the SIM card, place the removable battery into its compartment, ensuring the contacts align.
  2. Replace the back cover until it clicks into place.

4.3 Initial Power-On and Charging

  1. Press and hold the Power button until the device powers on and the LCD screen illuminates.
  2. For first-time use, or if the battery is low, connect the device to a power source using the provided USB cable and a compatible charger (DC: 5 V, 2 A recommended).

4.4 Connecting to Wi-Fi

  1. Once the device is powered on, the Wi-Fi network name (SSID) and password will be displayed on the LCD screen.
  2. On your computer, smartphone, or other Wi-Fi enabled device, search for available Wi-Fi networks.
  3. Select the SSID of your E5785-320 and enter the password to connect.

5. Operating the Device

5.1 Checking Device Status

The 1.45-inch LCD display provides real-time information about the device's status, including signal strength, battery level, connected users, and data usage.

5.2 Managing Settings via Web Interface

For advanced settings and management, you can access the device's web-based management interface:

  1. Connect your device (computer, smartphone) to the E5785-320's Wi-Fi network.
  2. Open a web browser and enter the default IP address (usually 192.168.8.1 or similar, check the device's label or manual for exact address).
  3. Enter the administrator username and password (default credentials are often admin for both, but check your device's label).
  4. From the web interface, you can configure Wi-Fi settings, network modes, security, and view detailed status information.

6. Maintenance

6.1 Charging the Battery

To charge the device, connect it to a power adapter or a computer's USB port using the Micro USB cable. The battery indicator on the LCD display will show the charging status.

6.2 Battery Care

  • Avoid exposing the battery to extreme temperatures.
  • Do not puncture, disassemble, or modify the battery.
  • If the device will not be used for an extended period, charge the battery to about 50% and store it in a cool, dry place.
  • The battery is removable (Capacity: 3.8 V, 3000 mAh).

6.3 Cleaning

Use a soft, dry cloth to clean the device. Avoid using liquid cleaners or solvents that could damage the device's surface or internal components.

7. Troubleshooting

  • No Signal: Ensure your SIM card is correctly inserted and activated. Check if you are in an area with network coverage.
  • Cannot Connect to Wi-Fi: Verify the Wi-Fi password. Restart both the router and your connecting device.
  • No Internet Access: Check the network status on the LCD display. Ensure your SIM card has an active data plan. Try restarting the device.
  • Device Freezes: Press and hold the Power button to force a restart. If the issue persists, use a pin to press the RESET button (usually located in a small hole) to restore factory settings (note: this will erase custom configurations).

8. Specifications

8.1 General Specifications

Table of general specifications for Huawei E5785-320.
Table 8-1: General Specifications
Item Specifications
Power consumption < 4 W
Charger (Optional) AC: 100–240 V, DC: 5 V, 2 A
Battery Type: Rechargeable lithium battery (removable)
Capacity: 3.8 V, 3000 mAh
Maximum working hours: 12 (depending on the network)
Maximum standby hours: 700 (depending on the network)
External ports Micro USB port
Micro-SIM card slot (3FF)
Display 1.45 inch LCD display
Buttons Power button, RESET button, MENU button
Antenna Built-in LTE/UMTS main antenna
Built-in LTE/UMTS diversity antenna
Built-in WLAN antenna
Dimensions (W × D × H) 108 mm × 62 mm × 17.3 mm
Weight Approximately 127 g (including the battery)
Temperature Operating temperature: 0°C to 35°C
Storage temperature: –20°C to +60°C
Humidity 5% to 95% (non-condensing)

8.2 Hardware Specifications

Table of hardware specifications for Huawei E5785-320.
Table 8-2: Hardware Specifications
Item Specifications
Technical standard WAN: LTE/DC-HSPA+/HSPA+/HSPA/UMTS/ EDGE/GPRS/GSM
Wi-Fi/WLAN: IEEE 802.11 a/b/g/n/ac
Operating frequency LTE FDD: B1/B3/B5/B7/B8/B18/B19/B20/B28/B32
LTE TDD: B38/B41/B42
UMTS: B1/B2/B5/B8
GSM: B2/B3/B5/B8
LTE CA: B1+B3, B1+B7, B1+B20, B1+B28 (only B1 as PCC), B3+B5, B3+B7, B3+B8 (only B3 as PCC), B3+B20, B3+B28, B7+B8 (only B7 as PCC), B7+B20, B7+B28, B8+B38 (only B8 as PCC), B20+B32 (only B20 as PCC)
DL CA: Intra-Band continuous: B1+B1, B3+B3, B7+B7, B38+B38, B41+B41, B42+B42
Intra-Band non-continuous: B3+B3
See Appendix for supported LTE channel bandwidths
Wi-Fi/WLAN: 2.4 GHz
Wi-Fi/WLAN: 5 GHz
Memory ROM: 256 MB NAND Flash
RAM: 256 MB DDR

8.3 Wireless Performance Specifications

Table detailing transmit power, receiver sensitivity, and Wi-Fi/WLAN speed for Huawei E5785-320.
Table 8-3: Wireless Performance Specifications
Item Specifications
Transmit power LTE: Conforms to Power Class 3 Definition
WCDMA/HSPA/HSPA+: Conforms to 3GPP
Wi-Fi/WLAN 2.4 GHz: 802.11b: 14 dBm, 802.11g: 13 dBm, 802.11n: 13 (20 MHz)/12.5 (40 MHz) dBm
Wi-Fi/WLAN 5 GHz: 802.11a: 14 dBm, 802.11ac: 13 (20 MHz)/12 (40 MHz)/12 (80 MHz) dBm
802.11n: 14 dBm
Note: The value above represents a typical transmit power in Wi-Fi/WLAN mode, and may vary slightly by device.
Receiver sensitivity LTE: Conforms to 3GPP
WCDMA/HSPA/HSPA+: Conforms to 3GPP
Wi-Fi/WLAN 2.4 GHz: 802.11b: -76 dBm@11 Mbps, 802.11g: -65 dBm@54 Mbps, 802.11n: -64 dBm@65 Mbps
Wi-Fi/WLAN 5 GHz: 802.11a: -65 dBm@54 Mbps, 802.11ac: -64 dBm@65 Mbps, 802.11n: -64 dBm@65 Mbps
WLAN MIMO 2*2 MIMO
Wi-Fi/WLAN speed 802.11a: Up to 54 Mbps
802.11b: Up to 11 Mbps
802.11g: Up to 54 Mbps
802.11n: HT20: Supports MCS0–MCS7; Up to 72.2 Mbps. Supports MCS8–MCS15; Up to 144.4 Mbps. HT40: Supports MCS0–MCS7; Up to 150 Mbps. Supports MCS8–MCS15; Up to 300 Mbps.
802.11ac: Up to 867 Mbps

9. User Tips

  • Extended Usage: For prolonged use away from power outlets, consider carrying a power bank or a spare battery to maximize your mobile connectivity.
  • Network Compatibility: Always verify that the device's supported LTE/UMTS/GSM bands are compatible with your local network operator for optimal performance.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the official Huawei website or contact your point of purchase. Keep your proof of purchase for warranty claims.

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