Daniel PN Posted November 24, 2020 Share Posted November 24, 2020 Dear All, Thank You @Jake Lo because I found the EFI Opencore from your post and I create USB boot but it was stuck on logo Apple. I used my old EFI Clover boot is working good but it was still have problem in Sleep mode (black screen). I'm using the MacBook Air's Wifi Card CS2 and It's working automatic. Please help me! my Clover EFI: https://drive.google.com/file/d/1Ulh6V8lgsQ22tRvUnZzFs1UPgDsRSnr-/view?usp=sharing and the OC EFI attach below: E7270_OC_JakeLo_test1.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted November 24, 2020 Moderators Share Posted November 24, 2020 you can try latest OC files here https://osxlatitude.com/forums/topic/9179-dell-latitude-e7x70-installation-guides-uefi-only-clover-and-opencore/?do=findComment&comment=104256 1 Link to comment Share on other sites More sharing options...
Daniel PN Posted December 3, 2020 Author Share Posted December 3, 2020 I have this error in every EFI - including my old EFI working good with High Sierra & your EFI. Please help me! Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 3, 2020 Moderators Share Posted December 3, 2020 Make sure you reset nvram after any changes Link to comment Share on other sites More sharing options...
Daniel PN Posted December 3, 2020 Author Share Posted December 3, 2020 I have no idea how to reset nvram on this Laptop. 1 Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 3, 2020 Moderators Share Posted December 3, 2020 boot to Opencore. If you don't see that option, then press the spacebar to review it 1 Link to comment Share on other sites More sharing options...
Administrators Hervé Posted December 3, 2020 Administrators Share Posted December 3, 2020 It would really be appreciated if people who use OpenCore would take the time to read the documentation posted at Dortania's. These people must have spent hours to write it and it is excellent. Common courtesy would be to refer to it. 1 Link to comment Share on other sites More sharing options...
Daniel PN Posted December 5, 2020 Author Share Posted December 5, 2020 finally it's work with my clover boot. But I have no sound even I put AppleAHCIPort.kext, AppleALC.kext & Lilu.kext Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 5, 2020 Moderators Share Posted December 5, 2020 Post Clover files + IORegistryExplorer file Link to comment Share on other sites More sharing options...
Daniel PN Posted December 12, 2020 Author Share Posted December 12, 2020 Dear Jake Lo, Here you are! EFI: https://drive.google.com/file/d/18YFCosk4j4W9IbL0W-YDlggQJPSXUJBX/view?usp=sharing IOReg: Daniel’s Dell E7270 IOreg.ioreg Link to comment Share on other sites More sharing options...
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