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Contents

1  Package Contents

The following items are included in your package:

3G Mobile Wi-Fi
Battery Pack
USB Cable



Easy Start Guide
Warranty Policy


Package Contents........................................................2
Device Overview............................................................3
Setting Up Your Device..................................................4
Internet Connectivity....................................................6
Connecting Wirelessly..................................................6
The Web User Interface.................................................8
Configuring your Wireless Network..............................9
Factory Default Reset...................................................9
Device Tips & Reminders............................................10

This Easy Start Guide is designed to help you immediately 

use and configure your Aztech MWR638 3G Mobile Wi-Fi’s 

basic settings according to your needs. 

This Easy Start Guide together with the User Manual which 

provides  a  more  advanced  guide  to  this  product  can  be 

downloaded from our Aztech Website 

( www.aztech.com > Categories > Aztech Datacom > 

Mobile Wi-Fi > MWR638 )

2  Device Overview

Your  Aztech  MWR638  converts  your  SIM  Card’s  3G  /  2G 

signal  to  Wi-Fi  signals,  giving  your  wireless  devices 

constant internet access, anytime and anywhere.

Signal Strength

Indicator

     /       

Network Type

Internet Status

New SMS 

Automatic/Manual 

Dial Mode

Data Usage 

Indicator

Network/Operator 

Information

Screen Display 

Icons

WiFi Status &

Device User Count

Inbox Full

Roaming Status

Device Label Sticker

Found underneath the 

battery pack of your 

device, the label sticker 

contains the default 

SSID 

(wireless network 

name), 

WiFi Key 

(wireless 

password), the web user 

interface 

IP Address

 and 

its 

login password.

3  Setting up Your Device

A. SIM Card Installation

Power Button

Reset Button

Screen Display

Micro USB Port

Remove the 

bottom cover 

and battery pack 

of your Aztech 

MWR638 device. 

1.

Insert the 

standard SIM 

card on your 

device’s SIM 

card slot.

2.

B. Charging your Device

Connect your Aztech MWR638 to your Desktop / PC 

using the USB Cable included in the package.  

C. Turning ON your Aztech MWR638

Press and hold the power 

button until the Screen 

Display turns ON.
Note : To turn OFF, press 

and hold the power button 

until the Screen Display 

turns OFF.

D. PIN Lock

If your SIM has an active PIN code, you may have 

to log in to the web user interface of your Aztech 

MWR638 and correctly enter it first. You may opt to 

disable this feature later on.

Note: For more details regarding your SIM Card’s 

PIN / PUK Code, please contact your service 

provider.

You  may  opt  to  write 

down  the 

WiFi  Key

  of 

your  Aztech  MWR638  for 

easier reference. 

BOTTOM  

COvER

BATTERY 

PACK

SIM CARD

NOTE  :  You 
may also use 
a 5V 1A phone 
charger  for 
your device. 

Easy Start Guide

3G Mobile Wi-Fi

MWR638

Return the 

battery pack 

and bottom 

cover in place.

3.

2

3

4

5

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