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Gigamaxx

Catalina Kext modification for wifi and bluetooth issues

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Catalina seems to be a read only kext system so modifying kexts to make older hardware work doesn't seem to be possible at this point.   However we have had success using Mojave kexts to get hardware to function.

 

For bluetooth on Broadcom WiFi cards using injectorkext and adding the Mojave bluetooth kexts to System/Library/Extensions folder seems to have solved the connectability issue.   Install Mojave kexts and use kext utility to repair permissions and caches before reboot.   The Zip contains the Catalina original kexts as a backup in case you want to revert.  

 

 

Bluetooth kexts fix.zip

Bluetooth fix pic.png

 

 

 

For Atheros WiFi we are using Mojave modified with High Sierra kexts.   Install in System/Library/Extensions folder and use kext utility to repair.

 

 

Screen Shot 2019-06-09 at 8.44.02 PM.png

Edited by Gigamaxx

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6 minutes ago, Gigamaxx said:

Catalina seems to be a read only kext system so modifying kexts to make older hardware work doesn't seem to be possible at this point.   However we have had success using Mojave kexts to get hardware to function.

So my question is even if we disable SIP from terminal in recovery mode we still can't modify the kexts under Catalina?

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14 minutes ago, Cyberdevs said:

So my question is even if we disable SIP from terminal in recovery mode we still can't modify the kexts under Catalina?

 

Read only kexts?   

Let me know when you have Atheros installer ready for Catalina, I'll post a link on page one.

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1 minute ago, Gigamaxx said:

 

Read only kexts?   

Let me know when you have Atheros installer ready for Catalina, I'll post a link on page one.

I already uploaded the Atheros Installer for Catalina

https://www.insanelymac.com/forum/files/file/956-atheros-installer-for-macos-mojave-and-catalina/

 

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I'm running Catalina on a Dell XPS 15 9550 laptop, and I could fix the Broadcom bluetooth issue by installing the new kexts from the forked Broadcom PatchRAM driver for OS X project. It's installed on Clover instead of S/L/E, so in my case, there was no need to change the system kexts.

 

I have 3 kexts installed in order to have bluetooth working properly:

- BrcmPatchRAM2.kext

- BrcmFirmwareData.kext

- BrcmBluetoothInjector.kext

 

Note that, the last kext (BrcmBluetoothInjector.kext) shouldn't be installed with the first 2 in my list (as per instruction on the project). But if I don't install them all, bluetooth won't fully work.

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On 7/3/2019 at 5:54 AM, golimpio said:

I'm running Catalina on a Dell XPS 15 9550 laptop, and I could fix the Broadcom bluetooth issue by installing the new kexts from the forked Broadcom PatchRAM driver for OS X project. It's installed on Clover instead of S/L/E, so in my case, there was no need to change the system kexts.

 

I have 3 kexts installed in order to have bluetooth working properly:

- BrcmPatchRAM2.kext

- BrcmFirmwareData.kext

- BrcmBluetoothInjector.kext

 

Note that, the last kext (BrcmBluetoothInjector.kext) shouldn't be installed with the first 2 in my list (as per instruction on the project). But if I don't install them all, bluetooth won't fully work.

Headkaze modified the source so you can install those 3 kext at the same time if needed.

Edited by ellaosx

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Great and thanks! Finally everything working on Catalina.

 

I am running OS X 10.15.1 with this card:

LENOVO YOGA 3 PRO/2 13/710/Y50-70/Touch 04X6020 BCM94352Z

 

To get bluetooth to work I had to put these kexts inside EFI/CLOVER/kexts/Other

BrcmBluetoothInjector.kext

BrcmPatchRAM3.kext

BrcmFirmwareData.kext

 

First I tried with BrcmPatchRAM2.kext but bluetooth was not working. I have a little different versions than you have:

 

USB-->

BCM20702A0:

  Product ID: 0x6417

  Vendor ID: 0x0a5c  (Broadcom Corp.)

  Version: 1.12

 

Bluetooth-->

Firmware version: v14 c5876

 

These cards are getting expensive. I see they are twice the price on ebay as when I bought. I have had great success with Dell DW1560 but they are also very expensive. If you don't have room (height) for a MacBookAir wifi card with adapter I would would go for that or the Lenovo card. The 1820A is cheaper but gave me too many challenges to get to work. 

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      10.15.4
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      - VirtualSMC.kext. I used version 1.3.7.
      - VoodooP2Controller.kext. I used versions 2.1.2.
      (all download links above)
       
      Download the latest CLOVER installer. I used version 5107.
      - Install respecting the configuration mentioned above in "Install bootloader" section.
       
      Install update. Will reboot at least four time.
       
       
       

      And last but not least

      I would like to thank the following community members, by making these dream possible:
      @crushers, @snatch, @apianti, @blackosx, @blusseau, @dmazar, @slice2009, @autumnrain, @phpdev32, @EMlyDinEsH, @RehabMan, @Scellow, @mitch_de, @Shailua, @Andy Vandijck, @maxfierke, @ArturXXX, @LexHimself, @brumas, @"Sniki", @Mieze, @headkaze and all others members involved directly or indirectly.
       
       
      Attachments
       
       
      SSDT-L440.aml
      config.plist
      VoodooHDA.kext.zip
      VoodooPS2Controller.kext.zip
      Filevault 2 additional drivers.zip
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