Zte MF286D User manual

MF286D LTE Wireless Router
After-salesServiceManual(Level1)
Version1.0

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LEGAL INFORMATION
Copyright © 2020 ZTE CORPORATION.
The contents of this document are protected by copyright laws and international treaties.
Any reproduction or distribution of this document or any portion of this document, in any
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Additionally, the contents of this document are protected by contractual confidentiality
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representations or conditions are disclaimed, including without limitation any implied
warranty of merchantability, fitness for a particular purpose, title or non-infringement. ZTE
CORPORATION and its licensors shall not be liable for damages resulting from the use of
or reliance on the information contained herein.
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provided in any written license between ZTE CORPORATION and its licensee, the user of
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The ultimate right to interpret this product resides in ZTE CORPORATION.
Revision History
Revision No. Revision Date Revision Reason
R1.0 March 17, 2020 First Edition
Edited by ZTE Terminal Business Division
Publishing Date: March 17, 2020

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Contents
1.Product Summary ............................................................................... 3
1.1Attention..........................................................................................................3
1.2Product Overview............................................................................................3
1.3Standard Configuration ...................................................................................3
1.4Specifications ..................................................................................................4
2.Function Test....................................................................................... 5
2.1NFF Test .........................................................................................................5
2.2Test Web UI ....................................................................................................6
3.Software Download............................................................................. 7
3.1Preparations....................................................................................................7
3.2Install Download Platform ...............................................................................7
3.3Install Plug-in ................................................................................................11
3.4Download Software.......................................................................................12
4.Disassembly ...................................................................................... 14
4.1Disassembly Tools ........................................................................................14
4.2Exploded View ..............................................................................................14
4.3Disassembly Steps........................................................................................15
4.4Composing....................................................................................................22
5.Principle and Logic Boards ............................................................. 23
5.1Principle Block Diagram................................................................................23
5.2Basic Component Distribution.......................................................................24
6.Troubleshooting................................................................................ 26
6.1Startup Fault..................................................................................................26
6.2System Crashes / Automatically Powered Off ..............................................26
6.3Wi-Fi Connection Fault .................................................................................27
6.4(U)SIM Card Unidentified..............................................................................27
6.5Download Fault.............................................................................................28
6.6Abnormal Indicators ......................................................................................28
6.7No Signal ......................................................................................................29
6.8Wi-Fi Module Fault........................................................................................30
7.Contact Us ......................................................................................... 31

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1. Product Summary
1.1 Attention
Before performing any maintenance to the MF286D device, you need to verify that the
MF286D is in a secure network.
1.2 Product Overview
NOTE:
The picture is for reference only. The actual product may be different.
1.3 Standard Configuration
No. Name Quantity
1 MF286D wireless router 1
2 LAN cable 1
3 Power adapter 1
4 Quick start guide 1

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1.4 Specifications
Category Parameter Specification
Physical
parameters
Dimensions (Height ×
Width × Depth) 171.64 mm × 183.51 mm × 58.51 mm
Weight About 458.2 g
Frequency bands
FDD LTE: B1/B3/B7/B8/B20/B28
TDD LTE: B38
UMTS: 900/2100 MHz
GSM: 850/900/1800/1900 MHz
Technical
parameters
Chipsets MDM9250-2, IPQ4019
Storage
MDM-9250-2: 512 MB Flash + 256 MB DDR
IPQ-4019: 2MB Nor Flash + 128 MB NAND
Flash + 256 MB DDR3
Interfaces RJ45*4, RJ11*2, USB-A*1
Wi-Fi 802.11 a/b/g/n/ac, 2*2 MIMO
Max. connected Wi-Fi
clients 64
Power supply +12 V DC, 1.5A

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2. Function Test
2.1 NFF Test
Test Flow Chart Test Item Test Method and
Requirements Test device
(1) Basic
requirements
1. The accessories are
complete.
2. The anti-dismantle tag is
not damaged.
3. The waterproof tag has no
color changes.
4. The device is not
physically damaged.
5. The device is still under
warranty.
None
(2) Failure
recurrence
1. (Optional) Check whether
the screen is lit.
2. (Optional) Test the touch
screen and confirm it is
functional.
3. Test the failures described
by the customer, and
confirm that the failures do
not recur.
Test card
(3) Network
connection
test
1. Connect to MF286D
through Wi-Fi.
2. Open the web UI of
MF286D and confirm the
web UI pages can be
accessed.
Test card
Computer
(4) Wi-Fi
connection
test
Use a mobile phone to
connect to the Wi-Fi network
of MF286D. Check whether
the phone can be connected
and whether the Internet can
be accessed.
Test card
Mobile phone
Summary
Perform steps 1 to 4.
If a fault occurs at a step, terminate the test. This terminal is
faulty.
If no fault is found until the test is completed, NFF is
determined.
NOTE:
For the test items that are not included in steps 1 to 4, refer to the user manual of MF286D.

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2.2 Test Web UI
1. Connect to MF286D by either of the following ways:
Connecting through LAN cable
Connect the LAN2, LAN3, LAN4 port of MF286D to the computer with the LAN
cable.
NOTE:
You need to set the IP address as Obtain an IP address automatically.
Connecting through Wi-Fi
a) Enable the Wi-Fi function on your computer, mobile phone or tablet.
b) Select the Wi-Fi hotspot name of MF286D (SSID).
c) Type the Wi-Fi password to connect to MF286D.
NOTE:
The default Wi-Fi SSID and password can be found on the bottom of MF286D.
2. Open the web UI.
a) Open the browser and visit the address 192.168.100.1 on the client to open the
web UI.
b) Type the management password to log in to the web UI.
NOTE:
Check the default management password on the bottom of the device.
3. Confirm each function is available, including Internet connection, settings, etc.
NOTE:
A vailid (U)SIM card is needed to access the Internet.

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3. Software Download
3.1 Preparations
LAN cable
Service software
Type Name/Version Description
Download
platform ZTSUFV1.0.1B10 The software versions
are for reference only.
Please use the latest
versions for the
software download.
Plug-in SUF_DL_MF286DV1.00.01
Software MF286DV1.0.0B02
3.2 Install Download Platform
1. Unzip the package of the download platform and double-click the program icon
Setup.exe to start the installation.
2. Select the installation language and click OK.

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3. Click Next.
4. Accept the terms of the license agreement and click Next.

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5. Type the User Name and Company Name and click Next.
6. Select the installation directory and click Next.

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7. Click Install.
8. When the installation is completed, click Finish.

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3.3 Install Plug-in
1. Double-click SUF_DL_MF286DV1.00.01.zas in the package
SUF_DL_MF286DV1.00.01.zip to start the installation.
2. Click Install.
3. When the installation is completed, click Yes to run the download platform.
The main interface of the download platform is as follows.

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3.4 Download Software
1. Unzip the software packages.
2. Copy the root_uImage file from the 6.CPE_Download_File folder and the uboot.bin
file from the 7.CPE_Boot_File folder (both in the CR package) to the
3.Download_File folder in the MODULE package.
3. Connect MF286D to a power source with the power adapter.
4. Power on MF286D and connect its WAN/LAN1 port to the computer with the LAN
cable.
5. Run the download platform ZTE Terminal Software Update Framework and wait until
MF286D is identified.
6. Click SW PATH to select the software path of the 3.Download_File folder.

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7. Click the start button to start the download.
8. Wait until the download is completed.

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4. Disassembly
4.1 Disassembly Tools
No. Name
1 Anti-electrostatic gloves
2 Anti-electrostatic wrist strap
3 Tweezers
4 Screwdriver
5 Housing disassembly tool
4.2 Exploded View

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4.3 Disassembly Steps
The device for disassembly demonstration is for reference only. It might not be completely
identical with yours.
1. Remove the plugs and battery cover.
NOTE:
The left and right plugs are not interchangeable. Install them accordingly when
reassembling the device.
2. Remove the screw.

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3. Separate the back cover.
4. Remove the 4 screws from the middle cover.

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5. Separate the front cover and the middle cover.
6. Remove the 4 screws from the mainboard.

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7. Remove the mainboard from the middle cover.
8. Remove the conductive cloth and the RF cable.

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9. Unlock and remove the antennas.