ZTE USB Modem MF833U1 User Guide

ZTE MF833U1 USB Modem Quick Start Guide

Getting to Know Your Modem

Your modem supports data and SMS services through the mobile phone network, enabling you to communicate anytime and anywhere. The following figure is only for your reference. The actual product may be different.

  1. Modem cap
  2. Front cover
  3. Indicator light
  4. USB connector
  5. microSDHC™ card slot
  6. micro-SIM card slot


microSDHC logo is a trademark of SD3C, LLC.

Installing the micro-SIM Card and microSDHC Card

  1. Press and push the front cover and remove it. NOTE:Do not open the front cover rudely. Failing to do so may cause damage to the front cover.
  2. Install a micro-SIM card to the micro-SIM card slot. WARNING!Your modem does not support SIM cards and nano-SIM cards. To avoid damage to the modem, do not use those cards or any card holders.
  3. Install a microSDHC card to the microSDHC card slot.
  4. Slide the front cover gently back into place.

Connecting the Modem to Your PC

Insert the modem into your computer’s USB port securely. The operating system automatically detects and identifes your modem and starts the installation wizard.


If the system does not launch installation automatically, you can double-click the modem installation icon in My Computer > ZTEMODEM to install the software.

Accessing the Internet

After the modem is connected to your computer successfully, you can access the Internet in Automatic or Manual mode. The default mode is Automatic.


  • To change current connection setting, please disconnect from the Internet frst.
  • To modify the parameters of your modem, log in to the 4G Hostless Modem confguration page by visiting

Getting More Help

You can get help by:


Copyright © 2020 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

ZTE CORPORATIONNO. 55, Hi-tech Road South, Shenzhen,P.R.ChinaPostcode: 518057

Warning and Notice

Using Your Modem

  • If inadequately shielded, some electronic devices may be affected by the electromagnetic interference caused by the modem, such as the electronic system of vehicles. Consult the manufacturers of such devices before using the modem if necessary.
  • Operating the modem may interfere with medical instruments such as hearing aids and pacemakers. Always keep the modem more than 20 centimeters away from such medical instruments when your modem is turned on. Turn the modem off if necessary. Consult a physician or the manufacturers of medical instruments before using the modem if necessary.
  • Be aware of the usage limitation when using the modem at places such as oil warehouses or chemical factories, where there are explosive gases or explosive products being processed. Turn off the modem if necessary.
  • Do not use electronic transmission devices in aircrafts, at petrol stations or in hospitals. Observe and obey all warning signs, and turn off the modem in these conditions.
  • Do not touch the inner antenna area unless it is necessary. Otherwise the performance of the modern may be affected.
  • Keep the modem out of the reach of little children. The modem may cause an injury if used as a toy.
  • When the modem is operating, do not touch the metallic parts. Failing to do so may cause burns.
  • Use original accessories or accessories that are authorized. Using any unauthorized accessories may affect the performance of the modem and violate the related national regulations about telecom terminals.
  • Avoid using the modem near or inside metallic structures or establishments that can emit electromagnetic waves, because signal reception may be affected.
  • The modem is not waterproof. Keep the modem dry and store it in a shady and cool place.
  • Do not use the modem immediately after a sudden temperature change. In such case dew may be generated inside and outside the modem, so do not use it until it becomes dry.
  • Handle the modem carefully. Do not drop, bend or strike it. Otherwise the modem may be damaged.
  • Only qualified personnel can dismantle and repair the modem.
  • An operating temperature between -10 °C and +55 °C and a humidity between 5% and 95% are recommended.

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, no matter 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.

Specific Absorption Rate (SAR)

Your mobile device is a radio transmitter and receiver. It is designed not to exceed the limits for exposure to radio waves recommended by international guidelines. These guidelines were developed by the independent scientific organization ICNIRP and include safety margins designed to assure the protection of all persons, regardless of age and health. The guidelines use a unit of measurement known as Specific Absorption Rate, or SAR. The SAR limit for mobile devices is 2 W/kg and the highest SAR value for this device when tested at the body was 1.54 W/kg* with 5 mm distance.

As SAR is measured utilizing the device’s highest transmitting power, the actual SAR of this device while operating is typically below that indicated above. This is due to automatic changes to the power level of the device to ensure it only uses the minimum power required to communicate with the network. * The tests are carried out in accordance with EN 50566, EN 62311, EN 50665 and EN 62209-2.


This radio equipment operates with the following frequency bands and maximum radio-frequency power.


All ZTE products are compliant with these power limits required by the European Union. Frequency bands supported by the product vary by model.

GSM 850/900: 35 dBmGSM 1800/1900: 32 dBmUMTS BAND 1/8: 25 dBmLTE BAND 1/3/7/8/20/38: 25 dBm

CE Caution

USB Port

This product shall only be connected to a USB interface of version USB 2.0.

Proper Use

As described in this guide, your device can be used only in right location. If possible, please do not touch the antenna area on your device.

Disposal of Your Old Appliance

For this product’s recycling information based on WEEE directive, please send an e-mail to [email protected]


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Hereby, ZTE Corporation declares that the radio equipment type ZTE MF833U1 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following Internet address: https://certifcation.ztedevices.com


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