MF90
Let’s go
Getting started with your device.
ZTE CORPORATION 
NO. 55, Hi-tech Road South, ShenZhen, P.R.China 
Postcode: 518057
LEGAL INFORMATION
Copyright © 2014 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, includ-
ing photocopying and microlm, without the prior written permission of 
ZTE Corporation.
The manual is published by ZTE Corporation. We reserve the right to 
make modications on print errors or update specications without prior 
notice.
Version No. : R1.0
Edition Time: December 2, 2014
NOTE:
Do not use  the  device  in an enclosed  environment  or  where heat dis-
sipation  is  poor. Prolonged  work  in  such  space  may  cause  excessive 
heat and raise ambient temperature, which may lead to automatic shut-
down of  the  device  for  your safety. In the case of such event, cool  the 
device in a well-ventilated place before turning on for normal use.
Getting to Know Your Device
Appearance
The following  gure is only for  your reference. The  actual product may 
be different.
1.   LED Indicators 
2.   Power Button 
3.   WPS Button 
4.   Micro USB Port
5.   (U)SIM Card Slot
6.   RESET Button
7.   microSDHC Card Slot
NOTE:  
microSDHC™ logo   is a trademark of SD-3C, LLC.
Indicators
Indicator Status Description
Network
Red solid
Error status. Not registered to the mobile 
network, no (U)SIM card inserted or no 
network service available.
Green solid Registered to the 2G/3G network.
Green blinking
Connected to the 2G/3G network and data 
is being transferred.
Blue solid Registered to the 4G network.
Blue blinking
Connected to the 4G network and data is 
being transferred.
Wi-Fi 
Blue solid  WPS is active.
Blue blinking Wi-Fi is active.
LED light off Wi-Fi is off or your device is in sleep mode.
Battery
Red blinking
The battery is empty. Please charge the 
battery.
Red solid
•  The  battery  is  low.  Please  charge  the 
battery.
•  The battery is in the over-voltage charg-
ing status.
Green blinking The battery is being charged.
Green solid The battery level is middle or high.
LED light off
Your device is in sleep mode and not being 
charged, or the battery is not inserted.
Connection Scenario
Your device  supports  two  methods  to  connect  to  the  Internet  and  sup-
ports multi-clients  for surng on the Internet at  the same time. The  fol-
lowing gure is only for your reference. 
•  4G Mode: Use your (U)SIM card to access the Internet.
•  Internet Wi-Fi Mode: Your device will connect  to  other  WLAN  de-
vice  (hotspot  device,  wireless  router, etc.)  via  Wi-Fi  to  access  the 
Internet. The WLAN device has already connected to the Internet.
NOTE:
The subnets of your device and other WLAN device must be different. 
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3.   The OS detects and recognizes new hardware and nishes the in-
stallation automatically.
NOTE: 
If the system does not automatically launch installation, you can click 
the device installation icon in My Computer to install the software.
4.   Wait a moment, and then the client will connect to your device suc-
cessfully.
Using the WPS(Optional)
If your client device supports WPS, you don’t have to input the pass-
word manually after WPS has been available. Please do the following:
1.  Power  on  your device,  and  enable  the  Wi-Fi  function  on  your  de-
vice.
2.  Press and hold the WPS button on your device about three seconds 
to start Wi-Fi Protected Setup authentication process.
3.  Enable the WPS function on your client to respond this authentica-
tion process.
4.  Follow the system prompts on your client to nish the connection.
NOTE: 
For the detailed operations about the client, please refer to the client’s 
instruction.
10
Installing Your Device
1.  Slide the back cover and remove it
2.  Insert the (U)SIM card.
WARNING!
Your device does not support the micro-SIM and nano-SIM card or any 
other non-standard SIM cards. To avoid damage to the device, do not 
use those cards or any card holders.
3.  Insert the microSDHC card if necessary.
 
4.  Insert the battery.
5.  Close the back cover.
Connecting to Your Device
Via Wi-Fi
1.  Power on your device directly. 
2.  Use your normal Wi-Fi application on the client to search for the 
available wireless networks.
 
NOTE: 
Please set the client to obtain an IP address automatically referring to 
the chapter “Conguring your PC”, and then the client will get an IP ad-
dress 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. 
5.  Wait a moment, and then the client will connect to your device suc-
cessfully.
Via USB Cable
1.   Connect to the device.
2.   Power on your device.
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