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Hi no one of your kindly shared efis worked in my 15AR5H laptop. I always get what it seem some kind of problem with the usb (USB lotsofnumbersandletters) will be reset. Then some times it goes to a black screen and sometimes don't. I've tested it with two pendrives but nothing. Then I thought...

Hi, now I cannot get the opencore menu. It says only: BEP: Invalid revision 3 (!=5) in loaded driver Halting on critical error In NVRAM--Add--4D1FDA02-38C7-4A6A-9CC6-4BCCA8B30102 it says AMD Ryzen 7 5800H, but I have a Ryzen 7 4800H. I don't know if it matters

Ok, there's a copy of the EFI, insidde the folder there's also th DSDT. Thanks!

Hi Edhawk, I'm not really sure about at which point, I made a video and take a screenshot of the last lines before it goes black. I'm also attaching the video itself (on a zip, it doesn't allow me to attach it in mp4 format).

Hi, after some attempts with various results as kernel panics, hangings... I decided to give a try to the EFI posted in this thread. It works till a point where the screen goes black and nothing more happens. I'm trying this efi with Big Sur, could it be the problem and I have to get a Ventura...

Thanks Edhawk! I was just thinking about that. I'll clon my usb to another one and change the EFI. I'll follow the install guide, it remembers me the one that I follow the last time so I hope it will be no problem on this side

Hi! I just registered after finding this thread. So happy if it's possible. I have a lenovo ideapad 3 with a ryzen 7 and I've been searching if there were some option to install osx on it for ages. I don't know if with the 4800 will work or if it only works on the 5800. I have an installation...