User manual
Confidential and Proprietary Information of ZTE CORPORATION 1
MF253L
Let’s go
Getting started with your device.
ZTE CORPORATION
NO. 55, Hi-tech Road South, ShenZhen, P.R.China
Postcode: 518057
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LEGAL INFORMATION
Copyright © 2013 ZTE CORPORATION.
All rights reserved.
No part of this publication may be excerpted, reproduced, translated or utilized in any form or by any
means, electronic or mechanical, including photocopying and microfilm, without the prior written
permission of ZTE Corporation.
The manual is published by ZTE Corporation. We reserve the right to make modifications on print errors
or update specifications without prior notice.
Version No. : R1.0
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Connecting Your Device
Follow the number to connect your device.
If you select a different operation mode, the connection of the LAN port is different. Please refer
to the chapter “Accessing the Internet”. If you want to use the mobile network to connect to the
Internet or use your home phone, you need insert your (U)SIM card first.
IMPORTANT:
Your device does not support the Micro/Nano SIM card or any other nonstandard SIM cards. To
avoid damaging the device, do not use those cards or any card holders
Put your device at least 2 meters away from the connected phone, TV sets, radio and other electronic
devices to avoid electromagnetic interference.
Indicators:
Indicator State Description
POWER
Blue ON Power is on and external power
supply is working normally.
OFF Power is off or external power
supply is working abnormally.
WIFI
Blue ON WLAN works normally with no data
transmission.
Blue Blinking WLAN works normally with data
transmission.
OFF WLAN works abnormally or the
WLAN function is disabled.
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Indicator State Description
PHONE
OFF The phone is not in use.
Blue Blinking The phone is ringing.
Blue ON The phone is in calling.
SIG
Blue ON Signal strength is very good or good.
Blue Blinking Signal strength is weak.
OFF There is no signal.
3G/4G
Red The device is turned on but not
registered to the mobile network.
Blue Blinking The device is connected to the LTE
network and data is being transferred.
Blue Solid The device is registered to the LTE
network.
Green Blinking The device is connected to the 3G
network and data is being transferred.
Green Solid The device is registered to the 3G
network.
LAN
Green ON The LAN port is connected.
Green Blinking The LAN port is connected with data
transmission.
OFF The network cable is not connected.
NOTE:
The phone function needs the network support.
Configuring Your PC
Follow the following steps and figures for Windows XP to configure the Internet Protocol for
your connection.
NOTES:
Wireless Network Connection is used for Wi-Fi connection.
Local Area Connection is used for network cable connection.
1. Right-click My Network Places, and then select Properties.
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2. Right-click the icon for Connection, and then select Properties.
3. Select Internet Protocol (TCP/IP), and then click Properties.
4. Select the two items indicated in the following figures, and then click OK to finish the
configuration.
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Accessing the Internet
Before accessing the Internet, please make sure that the following operations are finished.
Your device is connected via a network cable or Wi-Fi.
Your PC is configured.
To access the Internet:
1. Log in the 4G CPE Page.
1) Launch the Internet browser and enter http://192.168.0.1 in the address bar. The login
page appears.
2) Input the password and then click Login. The default password is admin.
2. View the current mode on the left top of the 4G CPE page, and then click Change.
3. Select an operation mode which you want to use and then click Apply.
NOTE: If you change the operation mode, the device will be restarted automatically.
4. Set the detail parameters for the operation mode.
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For Bridge
You need to connect the WAN to the LAN port via Ethernet cable and set the clients to
obtain the IP address automatically. Your clients can obtain the IP address from the WAN
DHCP host and connect to the Internet directly.
NOTE:
If you want to change the operation mode, you need to set the client a fixed IP address between
192.168.0.100 and 192.168.0.200, and then log in the 4G CPE page to change it.
For Cable Broadband
You need to connect the WAN to the LAN port via Ethernet cable and select the WAN
Connection Mode. There are three WAN Connection Modes: PPPoE, Static and DHCP.
Please contact with your service provider to confirm which mode is fit for you.
Select Settings > Network Settings to change the WAN connection mode and set the detail
parameters.
PPPoE mode
Select PPPoE, input the User Name and Password and then set the WAN Connection
Mode.
NOTE：Your service provider gives you the User Name and Password.
Static mode
Select Static, input all the parameters and then click Apply.
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NOTE：Your service provider gives you the static address information.
DHCP mode
Please select DHCP and then click Apply.
NOTE：Your service provider does not give you any parameters.
For Wireless Broadband
If you want to use your PC to connect to the Internet, please connect your PC to the LAN port
via Ethernet cable.
Select Settings > Network Settings > Dial-up Settings to change the WAN connection mode.
The default WAN Connection Mode is Automatic.
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5. Begin to enjoy your Internet service.
Voice Function
Making a Call
You can make a call through (U)SIM card.
To make a call:
1. Pick up the handset.
2. Key in the telephone number.
3. You can either press # key on the telephone to send the call, or wait 4～8 seconds for the call to be
connected automatically.
4. The call will be connected.
NOTE: If there is no 3G indication, the RF signal is unavailable. Change the location of the router and
make sure nothing is blocking it.
Answering a Call
When the phone rings, pick up the handset to answer it. If the telephone has hands-free function you
also can answer the call by pressing the Hands-free button. Press the Hands-free button again to end
the call.
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WPS Function
Your device supports WPS function. You can use this function to connect the client to your
device.
1. Power on your device, and enable the Wi-Fi function on your device.
2. Enable WPS function. Please check the WPS Setting on the 4G CPE page.
3. Press the WPS button on your device to start Wi-Fi Protected Setup authentication process.
4. Enable the WPS function on your client to respond this authentication process.
5. Follow the system prompts on your client to finish the connection.
USB Function
Your USB storage device will be used as a storage server.
1. Plug the storage’s USB connector into the USB port and make sure that it is tightly inserted.
2. Select Start > Run in the Windows Operating System.
3. Input \\192.168.0.1\admin, and then click OK.
4. Input the user name”admin” and password which is the 4G CPE page login password, and then click
OK.
5. After login the USB storage device successfully, you can manage the files in the storage.
NOTE: If you change the 4G CPE page login password after using USB function, you need to run this
command “net use * /delete” to delete the old password.
Wireless Connection
If you want to use Wi-Fi to connect your router, please refer to the following steps.
1. Make sure that the WLAN works normal. Please check the Wi-Fi Setting on the 4G CPE page or
check the WIFI indicator.
2. Use your normal Wi-Fi application on the client to search for the available wireless network.
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NOTE: Please set the client to obtain an IP address automatically, and the client will get an IP
address like “192.168.0.101”.
3. Select the SSID of your device, and then click Connect.
NOTE:
Please check the label on your device to get the default SSID.
4. Input the password and then click Connect.
NOTE:
You may need to input the password for Wi-Fi connection. Please check the label on your device to get
the default password.
5. Wait a moment, and then the client will connect to your device successfully.
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Troubleshooting
Voice Related Problems
Symptoms Possible Problems/ Solutions
No Dial Tone Please wait for 1~2 minutes after the router is turned
on.
If SIG LED light is blinking, you have no good RF
reception. Change the location of the router.
There is a prompt/ phone alert/ announcement as soon as I
lift the phone off the hook. Make sure your (U)SIM card is inserted correctly and
the PIN number has been entered. If the PIN number has
been entered incorrectly then you will need to enter the
PUK code when prompted.
The line is noisy/ distorted when I lift the phone off the
hook. Remove any electrical appliance which is too close to
the phone or your device.
The cable or phone set might be faulty.
I hear a rapid engaged tone as soon as I lift the phone off
the hook. Put the phone on hook and try again. If you are
connected to the internet using the 2G (GSM) network,
please disconnect this first.
After dialing the last digit I hear nothing /silence. When you have finished dialing you can press the # key
or wait 4-8 seconds to connect the call.
Internet Related Problems
Symptoms Possible Problems/ Solutions
Can not access the Internet at all. Please check your configuration settings.
Please wait 1~ 2 minutes for the router to initialize.
Check your service indicators.
The download or upload speeds are very slow. The speed is dependent on signal strength. Check your
signal strength and network type.
Can not visit the 4G CPE page Enter the correct address. The default address is
http://192.168.0.1.
Only use one network adapter in your PC.
Do not use any proxy server.
Can not establish the Wi-Fi connection between your
device and client Make sure the Wi-Fi function is active.
Refresh network list and select the correct SSID.
Check the IP address to make sure your client can
obtain an IP address automatically in the Internet
protocol (TCP/IP) properties.
Type the correct network key (Wi-Fi password) when
you connect to the device.
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Others
Symptoms Possible Problems/ Solutions
The 3G/4G signal indicator is always blinking or does not
light.
This indicates poor reception. Try moving the router
to another location near the window.
About the password
For the Wi-Fi connection password, please check the
label on the device.
The default password of the 4G CPE page is admin.
If you changed the password and forgot the new
password, you need to restore the device to the
factory default settings.
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Warning and Notice
Safety Precautions
Some electronic devices may be susceptible to electromagnetic interference. Locate the router away
from TV set, radio and other electronic equipment to avoid electromagnetic interference.
The router may interfere with medical devices like hearing aids and pacemakers. Consult a physician
or the manufacturer of the medical device before using the router.
Please keep yourself at least 20 centimeters away from router.
Do not use your router in dangerous environments such as oil terminals or chemical factories where
there are explosive gases or explosive products being processed.
Please use original accessories or accessories that are authorized by ZTE. Unauthorized accessories
may affect the router performance, damage the router or cause danger to you.
Do not attempt to dismantle the router. There are no user serviceable parts.
Do not allow the router or accessories to come into contact with liquid or moisture at any time. Do
not immerse the router in any liquid.
Do not place objects on top of the router. This may lead to overheating of the device.
The device must be placed in ventilation environment for use.
Do not expose the router to direct sunlight or store it in hot areas. High temperature can shorten the
life of electronic devices.
Do not allow children to play with the router or charger.
Keep the length of the cable between the router and the phone less than 10 meters.
The router is for indoor use only. Do not use the router outside. Do not connect telephone extensions
which run outside of the building. These can result in lightning damage to your unit.
Cleaning and Maintaining
• Use an antistatic cloth to clean the router. Do not use chemical or abrasive cleanser as these could
damage the plastic case. Turn off your router before you clean it.
• Use the router within the temperature range of -10℃ ～ +55℃, and the storage temperature range is
-20℃ ～+65℃. The humidity range is 5%~95%.
• Do not use your router during a thunderstorm. Remove the mains power pack from the wall socket.
• Do not take out your (U)SIM card unnecessarily. The (U)SIM card may be easily lost or it can be
damaged by static electricity.
Limited Warranty
• This warranty does not apply to defects or errors in the Product caused by:
i. Reasonable abrasion.
ii. End User’s failure to follow ZTE’s installation, operation or maintenance instructions or procedures.
iii. End User’s mishandling, misuse, negligence, or improper installation, disassembly, storage,
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servicing or operation of the Product.
iv. Modifications or repairs not made by ZTE or a ZTE-certified individual.
v. Power failures, surges, fire, flood, accidents, actions of third parties or other events outside ZTE’s
reasonable control.
vi. Usage of third-party products, or usage in conjunction with third-party products provided that such
defects are due to the combined usage.
vii. Any other cause beyond the range of normal usage intended for the Product.
End User shall have no right to reject or return the Product, or receive a refund for the Product from
ZTE under the above-mentioned situations.
• This warranty is End User’s sole remedy and ZTE’s sole liability for defective or nonconforming items,
and is in lieu of all other warranties, expressed, implied or statutory, including but not limited to the
implied warranties of merchantability and fitness for a particular purpose, unless otherwise required
under the mandatory provisions of the law.
Limitation of Liability
ZTE shall not be liable for any loss of profits or indirect, special, incidental or consequential damages
resulting from or arising out of or in connection with using of this product, whether or not ZTE had been
advised, knew or should have known of the possibility of such damages, including, but not limited to lost
profits, interruption of business, cost of capital, cost of substitute facilities or product, or any downtime
cost.
For more assistance, please:
• Send E-mail to mobile@zte.com.cn
• Visit www.ztedevice.com
• Call Service Hotline: +86–755–26779999
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FCC Regulations:
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) This device must accept any
interference received, including interference that may cause undesired operation.
This device has been tested and found to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiated radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
Caution:
Changes or modifications not expressly approved by the party responsible for compliance could void the
user‘s authority to operate the equipment.
RF Exposure Information
This device meets the government’s requirements for exposure to radio waves.
This device is designed and manufactured not to exceed the emission limits for exposure to radio
frequency (RF) energy set by the Federal Communications Commission of the U.S. Government.
This device complies with FCC radiation exposure limits set forth for an uncontrolled environment. In
order to avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity to
the antenna shall not be less than 20cm (8 inches) during normal operation.