MT7921K Install User Guideline Version: V0. 5 Release Date: 2021-12-30 © 2022 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.
MT7921K Install User Guideline: Part-I Confidential B Document Revision History Version Date Author V0.1 20201214 Jane Initial draft release. V0.2 20210109 Jane Added antenna set 4 information – “ RFMTA311020EMMB301_V02” V0.3 20210527 Added antenna set 5 information – “ JR2Q00340-1” V0.4 20210713 Added antenna set 6, 7 information – “ LA9RF059-CS-H”, “14008-02650500” V0.5 20211230 Added antenna set 8, 9 MediaTek Confidential Change List © 2022 MediaTek Inc.
MT7921K Install User Guideline: Part-I Confidential B Table of Contents Document Revision History ........................................................................................................................ 2 Table of Contents ...................................................................................................................................... 3 1 System overview ....................................................................................................................
MT7921K Install User Guideline: Part-I Confidential B 1 1.1 System overview 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.
MT7921K Install User Guideline: Part-I Confidential B 2 Driver install How to install driver 2.1 Please follow the procedure listed in below to install driver 1st : Update Windows security package to register signature mechanism 2nd : Install Windows driver. MediaTek Confidential © 2022 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.
MT7921K Install User Guideline: Part-I Confidential B 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: MediaTek Confidential © 2022 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc.
MT7921K Install User Guideline: Part-I Confidential B 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.
MT7921K Install User Guideline: Part-I Confidential B 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.
MT7921K Install User Guideline: Part-I Confidential B 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 f c e d g MediaTek Confidential © 2022 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.
MT7921K Install User Guideline: Part-I Confidential B h MediaTek Confidential © 2022 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.
MT7921K Install User Guideline: Part-I Confidential B General Information & Integration Instructions 3 3.1 General Description of MT7921K Product 2TX 11ax (WiFi6E) + BT/BLE Combo Card Brand MediaTek Model MT7921K Power Supply Rating 3.3Vdc from host equipment Modulation Type GFSK, π/4-DQPSK, 8DPSK for FHSS CCK, DQPSK, DBPSK for DSSS 64QAM, 16QAM, QPSK, BPSK for OFDM 256QAM for OFDM in 11ac mode and VHT20/40 in 2.
MT7921K Install User Guideline: Part-I Confidential B 3.2 Antenna information The antennas mentioned below are covered in the certification scope and the HOST can only be used with the following antennas: MediaTek Confidential © 2022 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.
MT7921K Install User Guideline: Part-I Confidential B Please note that the above antennas are custom made for MediaTek MT7921K module and are not listed in Walsin Technology Corp standard catalogs. For the purchase of these antennas, please contact Walsin Technology as listed below directly. Only the above antennas are tested for compliance with the FCC rules, and all other antennas (even same type with lower gain) will require a re-assessment to be used with this module.
MT7921K Install User Guideline: Part-I Confidential B 3.3 Host Integration instructions The product is designed to be used with “NGFF (Next Generation Form Factor) M.2 2230” PCIE Bus, please install module into a M.2 2230 PCIE slot. 3.4 Host product testing guidance HOST must follow the specific restrictions listed in “3.5 Regulatory notes” section below and section 3 of KDB996369 D04 V02 Module Integration Guide v01, to verify that the host product meets all the applicable rules.
MT7921K Install User Guideline: Part-I Confidential B 3.5 Regulatory notes Federal Communication Commission Interference Statement 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.
MT7921K Install User Guideline: Part-I Confidential B This module is intended for OEM integrators only. Per FCC KDB 996369 D03 OEM Manual v01 guidance, the following conditions must be strictly followed when using this certified module: KDB 996369 D03 OEM Manual v01 rule sections: 2.2 List of applicable FCC rules This module has been tested for compliance to FCC Part 15 Subpart C (15.247) and Subpart E (15.407). Device is tested for compliance as a low power indoor client device within 5.925–7.125 GHz band.
MT7921K Install User Guideline: Part-I Confidential B 2.7 Antennas The following antennas have been certified for use with this module. MediaTek Confidential © 2022 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.
MT7921K Install User Guideline: Part-I Confidential B Note1: Use of other antenna types or the same type of antenna with higher gain than listed above must performed additional testing and appropriate permissive change approval. Note2: In the 5.925-7.125GHz band, use of other similar type antennas and the antenna gain not higher/lower than listed above may only require a C1PC without any additional testing/submission.
MT7921K Install User Guideline: Part-I Confidential B 2.10 Additional testing, Part 15 Subpart B disclaimer This transmitter module is tested as a subsystem and its certification does not cover the FCC Part 15 Subpart B (unintentional radiator) rule requirement applicable to the final host. The final host will still need to be reassessed for compliance to this portion of rule requirements if applicable. As long as all conditions above are met, further transmitter test will not be required.