Moderators Jake Lo Posted August 5, 2020 Moderators Share Posted August 5, 2020 Either you need to clear you NVRam or you are manually entering this in your boot arg during boot -disablegfxfirmware -lilubetaall keepsyms=1 debug=0x100 alcid=1 vsmcgen=1 alcid=1 is wrong, should be 56 as you have it in the Config file. Since I don't see the above arg in the Config file, I only assume you need to clear the NVRam 1 Link to comment Share on other sites More sharing options...
ICEGalaxy Posted August 5, 2020 Author Share Posted August 5, 2020 Hey I think I have to clear the NVRam, because I don't enter anything manually, even that alcid=1 is not on the config I will do it later when I get my hands on the laptop Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted August 5, 2020 Moderators Share Posted August 5, 2020 Sorry, didn't the message. So were you able to resolve the NVRam issue and restore audio? Link to comment Share on other sites More sharing options...
ICEGalaxy Posted August 7, 2020 Author Share Posted August 7, 2020 @Jake Lo No, couldn't clear the Nvram Lol. I always get this, tried many ways... Error clearing firmware variables: (iokit/common) not permitted idk what's the problem again. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted August 7, 2020 Moderators Share Posted August 7, 2020 At clover, press F11. Press F1 for more options Link to comment Share on other sites More sharing options...
ICEGalaxy Posted August 7, 2020 Author Share Posted August 7, 2020 @Jake Lo did it, nothing happened except the brightness was at 100 when I booted which I guess means that the NVRam was successfully cleared. how about my SMBIOS, is it correct ? Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted August 7, 2020 Moderators Share Posted August 7, 2020 For HD520, you should be using MacbookPro13,1 Please post new IOReg file or debug files Link to comment Share on other sites More sharing options...
ICEGalaxy Posted August 7, 2020 Author Share Posted August 7, 2020 Thanks @Jake Lo Here you are: debug_31508.zip Should I do all that work when I want to upgrade to Big Sur ??? If yes then its time for Linux again Lol.. Link to comment Share on other sites More sharing options...
ICEGalaxy Posted August 9, 2020 Author Share Posted August 9, 2020 hey @Jake Lo I finally fixed Audio, well, the internal Audio only... The speakers and microphone are working PERFECTLY, they are loud and very high quality, I am impressed, but when I plug headphones they are detected and working, but they work poorly, I barely can hear something... I will post my EFI here from my Google Drive if someone needs it, BUT ITS INCOMPLETE !!! I still didn't tried Audio on HDMI, but at least Video is working when I did the test some time ago. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted August 9, 2020 Moderators Share Posted August 9, 2020 Post your files What exactly did you do to fix the Internal audio? Link to comment Share on other sites More sharing options...
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