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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

OpenCore - Catalina -> Monterey Installation: Download MacOS Monterey / Big Sur / Catalina app Format a 16GB USB drive (GUID / Extended (Journaled)) Create USB Installer with createinstallmedia command Download attached folder and rename as EFI Mount EFI partition and add EFI folder Configure BIOS setting according to guide Boot with USB installer Complete installation Post Installation: Mount EFI partition of newly installed drive and copy EFI folder over Update / Change in Config.plist under PlatformID->Generic (use genSMBIOS or Hackintool.app) MLB, ROM, SystemSerialNumber and SystemUUID Note: Replace Config.plist with Config-IntelWifi.plist if you have an Intel combo card Special note: E7270 OC 0.7.4 includes Alps V7 kext by Skyrilhd that enables multitouch. Sorry, some E7270 has Alps V8, then it won't work. OC 0.7.8 includes latest Alps by SkyrilHD, supports Alps v7/8 Updated to 0.8.3 - Supports Monterey 12.5.1 E7270_OC_0.8.3.zip E7470_OC_0.8.3.zip E7270_OC_0.7.9.zip E7470_OC_0.7.9.zip E7270_OC_0.7.4.zip E7470_OC_0.7.4.zip E7270_OC_0.7.0.zip E7470_OC_0.7.0.zip E7270_OC_0.6.3.zip E7470_OC_0.6.3.zip