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DW1820a - the general troubleshooting thread


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Many many thanks for updating and all Your trying and working!! 👍👍👍

 

What I can say about it:

 

At my HP Notebooks (Envy 13, 6th Gen. Intel-CPUs) Pin-Masking worked when macOS activated WIFI.

But mostly device can't get activated when pin-masked.

 

At a Lenovo Yoga card works without issues.

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Hi all, have been playing around with the driver to see if I can get firmware upload in Mojave  to work on my dw1820a without needing windows to upload the firmware.     It seems to be worki

I put a photo in the hidden area of my reply here. I attached 2 photos below too. I can't explain the reason though, I just followed some threads elsewhere when I was configuring.

Ok, I downloaded the latest driver for DW1820A I could find on Dell's web site here (Win7 64bit for XPS 9350, dated May 2019). I extracted the firmware 1707 for our 0A5C:6412 DW1820A device: BCM4

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51/53/55 are tied together to ground so probably device / manufacture specific key functions

54- is usb_otg_oc# (this looks to be USB on control) 3.3v input signal from motherboard to socket turns usb off

56- is w_disable#  (this looks like wlan control) 3.3v input signal from motherboard to socket turns wlan off

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Hi everyone, just re-purchased the correct 0VW3T model and everything works now, even until now i'm using AirPortBrcmNIC driver, but the wifi sometimes disconnect from 5Ghz to 2.4 Ghz, because i broke the NGFF antenna connector, but it's ok though, shutdown, sleep, wake restart OK, wifi still works, Airdrop, handoff, but sometimes DW1820A wont connect to Instant Hotspot, cheers.

 

also yesterday i watched movie for 4 Hours and no sudden freeze, kernel panic, or cpu usage increase.

 

P.S : i used the pin mask fix from @DalianSky WORKS Great for me, using Acer swift 3 notebook 😂

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@riskyrismawan, you forgot to specify the boot parameter you're using with AirPrtBrcmFixup, if any at all. If you're not using any, what's the purpose of AirportBrcmFixup since BCM4350 14e4:43a3 is natively controlled through AirPortBrcmNIC kext?

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