MEDIATEK MT7921K Manuale utente
© 2020 MediaTek Inc.
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
Specifications are subject to change without notice.
Version: V0. 1
Release Date: 2020-12-14
MT7921K Install User Guideline
MT7921K
Install User Guideline: Part-I
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MediaTek Confidential
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Document Revision History
Version
Date
Author
Change List
V0.1
20201214
Jane
Initial draft release.
Me
dia
Tek
Co
nfid
enti
al A
MT7921K
Install User Guideline: Part-I
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MediaTek Confidential
© 2020 MediaTek Inc.
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Table of Contents
Document Revision History ....................................................................................................................... 2!
Table of Contents ..................................................................................................................................... 3!
1!System overview ............................................................................................................................ 4!
1.1!General Description ............................................................................................................... 4!
2!Driver install .................................................................................................................................. 5!
2.1!How to install driver .............................................................................................................. 5!
2.1.1!Windows Security for new signature mechanism ..................................................... 6!
2.1.2!Windows 10 install note ........................................................................................ 7!
2.1.3!Install Windows driver ........................................................................................... 8!
3!General Information & Integration Instructions .................................................................... 11!
3.1!General Description of MT7921K ..................................................................................... 11!
3.2!Antenna information ......................................................................................................... 12!
3.3!Host Integration instructions ............................................................................................. 13!
3.4!Host product testing guidance .......................................................................................... 13!
MT7921K
Install User Guideline: Part-I
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MediaTek Confidential
© 2020 MediaTek Inc.
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This document contains information that is proprietary to MediaTek Inc.
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1 System overview
1.1 General Description
MT7921K chip is highly integrated single chip which have built in 2x2 dual-band wireless LAN and Bluetooth
combo radio. WiFi works on the ISM band, which means many other devices such as microwave oven, radar, and
Bluetooth use the same frequencies and channels with WiFi devices.
Therefore, governments make regulations to avoid interference between devices. The specifications include
usable channels, scan rule, and transmit power.
MT7921K
Install User Guideline: Part-I
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MediaTek Confidential
© 2020 MediaTek Inc.
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2 Driver install
2.1 How to install driver
Please follow the procedure listed in below to install driver
§ 1st : Update Windows security package to register signature mechanism
§ 2nd : Install Windows driver.
MT7921K
Install User Guideline: Part-I
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© 2020 MediaTek Inc.
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2.1.1 Windows Security for new signature mechanism
If you are the 1st time to use this driver, you should update Windows Security for new signature mechanism at
first. Please follow below link to install this software.
https://www.microsoft.com/en-us/download/details.aspx?id=46148
For windows 7 x64 example:
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2.1.2 Windows 10 install note
If manufacturer can’t install the driver in Windows 10 due to driver integrity check, try to disable the integrity
check to allow installation.
• Disable Driver Integrity Check
1. Open cmd as Administrator.
2. Execute ‘bcdedit /set nointegritychecks on’
3. Reboot
4. Then install again. If still fail, try do ‘Disable Secure Boot’ below.
NOTE: Re-enable the driver integrity check by executing ‘bcdedit /set nointegritychecks off’ and then
rebooting.
• Disable Secure Boot
Please refer to:
https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/disabling-secure-boot
MT7921K
Install User Guideline: Part-I
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MediaTek Confidential
© 2020 MediaTek Inc.
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2.1.3 Install Windows driver
MT7921K supports PCIE interface. According to interface type of MT7921K, please refer to steps shown below
to install Windows driver:
PCIE interface:
1. Connect DUT to PC/NB and check Windows Device Manager.
2. Window Device Manager would discover DUT shows “Generic Bluetooth Adapter”(BT device) and
“WiFi_If”(WiFi device).
3. Right click the “Generic Bluetooth Adapter” BT device and select disable as follows.
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Install User Guideline: Part-I
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4. Right-click on “WiFi_If” Wifi device and Update Driver Software.
5. According host’s Windows’ OS to select and install driver.
a
b
c
d
e
f
g
MT7921K
Install User Guideline: Part-I
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© 2020 MediaTek Inc.
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