davidfrei7as Posted December 17, 2020 Author Share Posted December 17, 2020 @Jake Lo I disabled SSDT-PNLF.aml as you recommended and it is working fine, but I don't know how to customize the xhci usb port limit with the software you mentioned. I'm leaving my final EFI folder attached here. Everything is working perfectly (with the exception of wifi because my card is not compatible). Even in my latitude 3400, big sur is better than the catalina I had installed, mainly the trackpad gestures, because before they were not as accurate as now. @Jorge1964 I recommend you install BigSur with the EFI attached, I believe everything will work (unless your wifi card is not compatible too), I installed it more than once and it worked perfectly. I hope you get it! EFI.zip Link to comment Share on other sites More sharing options...
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