macOS Catalina 10.15.0 - USB Port-Limit Removal Patch

[glofter1]

Problem solved with XHCI-unsupported.kext.

Thanks to all for support.

For me not work. even I add XHCI-unsupported.kext.
I'm stay with own USB.kext and everything work. for my mainboard Z370 extreme4 15 port it's enough. I have USB-C - 2 port witch are on other controller and for rest x6 usb3.0(12) and x3 usb2.0 (3) are perfect.

 

[restry]

I have a strange problem. The USB 2 device plugged into the USB 3 port does not work. But the USB3 device can be used normally in USB 3 Port with 5G/s. So does it port and device must be match to use?
usb2 --> usb2 port working
usb3 --> usb3 port working
usb2 --> usb3 port not working ????

Anyone have same problem with me?
My Motherboard is Z370 HD3 + i7 8600k + Vega 64

 

[Pehdipanuh]

Worked for my Gigabyte Z390M Gaming motherboard, thanks a lot!

Mine as well! USB3 HDD speed is also back to normal compared to Windows.
I just doubt whether SSDT shall be put back limiting to 15 port or not... any help?

 

[Feartech]

Mine as well! USB3 HDD speed is also back to normal compared to Windows.
I just doubt whether SSDT shall be put back limiting to 15 port or not... any help?

View attachment 434867

View attachment 434868

yes, you need to limit to 15 ports

 

[Max2012]

With the release of macOS Catalina 10.15.0 you'll probably need a port-limit removal patch to begin your USB configuration on a new build.

Here it is:

View attachment 430312

As you can see we only need two patches for Catalina as opposed to four, for Mojave.

Line 1 -

Name*: com.apple.iokit.IOUSBHostFamily
Find*: 83FB0F0F
Replace*: 83FB3F0F

Line 2 -

Name* com.apple.driver.usb.AppleUSBXHCI
Find*: 83F90F0F
Replace*: 83F93F0F

Remember you will need USBInjectAll.kext installed to enable this to work.



(Due credit given to previous patch discoverers: pmheart, daliansky and @ydeng )

Thank you!! I have fix USB3.0 devices problem on my system!

 

[Asural]

Thank you very much, I was able to install 10.15.1 on HP8100.

 

[cghochberg]

With the release of macOS Catalina 10.15.0 you'll probably need a port-limit removal patch to begin your USB configuration on a new build.

Here it is:

View attachment 430312

As you can see we only need two patches for Catalina as opposed to four, for Mojave.

Line 1 -

Name*: com.apple.iokit.IOUSBHostFamily
Find*: 83FB0F0F
Replace*: 83FB3F0F

Line 2 -

Name* com.apple.driver.usb.AppleUSBXHCI
Find*: 83F90F0F
Replace*: 83F93F0F

Remember you will need USBInjectAll.kext installed to enable this to work.



(Due credit given to previous patch discoverers: pmheart, daliansky and @ydeng )

Worked perfectly

 

[macusers3130]

I tried this patch then the sleep no longer work. anyone else ?

 

[Feartech]

I tried this patch then the sleep no longer work. anyone else ?

The New Beginner's Guide to USB Port Configuration

Important Update: June 2023 From Big Sur 11.3 on the built-in OpenCore XhciPortLimit quirk no-longer worked as described. This became a known "bug", though in reality it was Apple changing their internal code, making a simple "peek and poke" to keep it operating, a difficult task. However, with...

www.tonymacx86.com

 

[macusers3130]

Thank You Sir.
I will read it up and give it a try.