punjabigator Posted January 27, 2020 Share Posted January 27, 2020 I just updated the BIOS using the Windows OS and could not boot to OSX anymore. The windows boot ok. I took screen shot of the screen in verbose mode and attached in the message. Please provide guidance how to resolve this issue. Thank you. Current bios: 1.13.1 Link to comment Share on other sites More sharing options...
Administrators Hervé Posted January 27, 2020 Administrators Share Posted January 27, 2020 No issue for me after I upgraded to 1.13.1 some time ago. Refer to the 7490 guide and BIOS settings thread. If you use my patched DSDT, remove it, it's not entirely necessary after all. Link to comment Share on other sites More sharing options...
punjabigator Posted February 8, 2020 Author Share Posted February 8, 2020 Herve, thanks for the suggestion. Removing patched DSDT solved the issue. Regards, Link to comment Share on other sites More sharing options...
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