Huawei E5331s2 User Manual

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Thank you for choosing HUAWEI E5331 Mobile Wi-Fi 
This guide briefly describes the functions of the E5331 Mobile Wi-Fi.   
 
 
 
 
 
 Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved. 
THIS DOCUMENT IS FOR INFORMATION PURPOSE ONLY, AND DOES NOT CONSTITUTE 
ANY KIND OF WARRANTIES.  

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Getting to Know the HUAWEI E5331 Mobile Wi-Fi 
Connection Scenarios 
A Wi-Fi device or computer can be connected to the Internet through the Mobile Wi-Fi. 
The actual connection procedure depends on the operating system of the Wi-Fi device or 
computer. The connection scenarios illustrated here are for your reference. 
 
Scenario 1: Multi-device access via Wi-Fi 
      Scenario 2: One-device access via USB  
  

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Scenario 3: Multi-device access via Wi-Fi and USB at the same time 
  

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Appearance 
No. Item 
1 Signal indicator 2 
Wi-Fi indicator 3 Battery indicator   4 SMS indicator 5 
Power button   6 USB port(Micro USB Type B) 7 Strap hole 
Note:  
Wi-Fi: Wireless fidelity 
 
  

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Indicator 
Indicator Status  Color  Description 
Signal on green  The signal is strong. orange  The signal is weak. 
red There is no signal, the SIM card does not 
exist, or the PIN code is not verified. 
Wi-Fi on  green  Wi-Fi is enabled. off / Wi-Fi is disabled. 
Battery on green on  The battery level is normal. blinking  The battery is charging. red  on  The battery level is low. 
SMS on green on  There are unread messages. blinking  The inbox is full. off  /  There is no unread message. 
  

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Caution: If no operation is performed on the Mobile WiFi within a preset period, only the 
battery indicator displays. The status of the battery indicator is as follows: 
Indicator Status  Color  Description 
Battery on green Slowly 
blinking The battery level is normal. red Slowly 
blinking The battery level is low. 
 
SSID and Wireless Network key 
To connect a Wi-Fi device to your Mobile Wi-Fi, an 
SSID and a wireless network key are required. The 
SSID and wireless network key label can be found...

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Before You Start 
Installing the SIM Card and the Battery 
Caution: Do not use any SIM card that is not standard or 
is incompatible with the Mobile WiFi. Otherwise, the 
Mobile WiFi may be damaged. 
 
Insert the SIM card in the card slot. Be sure that the SIM card is facing in the right direction, 
as shown in figure 2, and then slide the SIM card into the slot.    

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Charging the Battery 
Note: If the battery has not been used for a long time, it must be charged first.   
Method 1: Using the charger 
Caution:   Only use chargers compatible with the Mobile   
WiFi and provided by a designated 
manufacturer. Use of an incompatible 
charger or one from an unknown 
manufacturer may cause the Mobile WiFi to 
malfunction, fail, or could even cause a fire. 
Such use voids all warranties, whether   
expressed or implied, on the product.  

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Method 2: Connecting to a PC for charging 
Connect the Mobile WiFi to a PC using a compatible data cable. 
 
  

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Accessing the Internet via Wi-Fi Connection 
Note: By default, management parameters are preset on the Mobile WiFi according to the 
requirements of the service provider. Follow the steps below to quickly access the Internet. 
For the details about how to set management parameters, see help on the web 
management page. 
Step1: Power on the Mobile WiFi 
Press and hold   until the indicators display. 
The Mobile WiFi is powered on.   
Note:  
 In order to access to the network successfully, 
make sure...