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DW1820a - the general troubleshooting thread


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Hi, i'm only use brcmfx-country=#a , and removed your Device patch from clover, the driver still loads AirPortBrcmNIC withous any issues, if i'm not using AirportBrcmFixup the device detected as third party wireless device.

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hahaha thanks 😂, but is there any way to force macOS to use the 5Ghz channel, sometimes the channel change itself to 2.4Ghz, or do you think that i broke the Built-in antenna, because that time when i'm replacing the device, i didn't know the antenna soldered to Intel wifi 7265, and now i'm using cheap small ngff antenna, does the antenna affect the network band???

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Yes, given the nature of the signal (short waves), 5GHz networks will work better with 2 x antennas. I don't think it'll work properly on a single antenna. If you want to force your card on 5GHz, I guess you could try and split your SSIDs and have one for 5GHz and a different one for 2.4GHz.

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i got it, i can't stable connect to 5Ghz because this connector, got ripped out, dmn i wish i knew earlier that my laptop wifi card was soldered with the antenna. anyway thanks for your guide and support for this card.


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Hello! I'm trying to get my card to work, the bluetooth literally works and is able to pick up my phone, however the PXSX device no longer shows in ioregistry under RP20.

Wifi does not work at all. What do i need to help diagnose this, and what steps should i take?

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On 8/31/2019 at 7:20 PM, Hervé said:

Ok, it's perfectly clear. You must be the 1st person for whom the DW1820A actually works nearly OOB!


I am 2nd.


08PKF4 OOB, no property injection, no masked pins on 10.14.6 (18G95)


Loaded kext: com.apple.driver.AirPort.BrcmNIC (1400.1.1)


Software Versions:

  CoreWLAN: 13.0 (1375.2)

  CoreWLANKit: 13.0 (1375.2)

  Menu Extra: 13.0 (1380.2)

  System Information: 12.0 (1300.2)

  IO80211 Family: 12.0 (1200.12.2)

  Diagnostics: 1.0 (805)

  AirPort Utility: 6.3.9 (639.9)



  Card Type: Third-Party Wireless Card

  MAC Address: xx:xx:xx:xx:xx:xx

  Supported PHY Modes: 802.11 a/b/g/n/ac

  Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 149, 153, 157, 161, 165

  Wake On Wireless: Supported

  AirDrop: Supported

  AirDrop Channel: 149

  Auto Unlock: Supported


Card does not show up under PCI devices.


I am sure, it did not work before!


I only checked now after I read the post and I installed both Supplemental updates since I last tried.


Is it possible, that something changed with one of the last two 10.14.6 supplemental updates here?


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