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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

Sierra Guide See here for install guide, just replace with Sierra bootpack. E7x70_Sierra.zip - See Update files below Known Issue & Workaround: HDMI-Output works but if connect HDMI-Cable the local Display goes off and never recovers. I had tried different configurations but none panned out. Here's a workaround: Close the LID until you see the HDMI display becomes the primary display, then open the LID. It'll switch LCD as primary and HDMI as secondary. NOTE: Workaround is only needed on clean boot, no issue if system has gone through a sleep/wake cycle Update: Fixed it by modifying EDID with this kext, but not work for Mojave. Post Install: Enable Brightness Control and Trackstick Scrolling Trackstick Scrolling Download and install Smartscroll for trackstick scrolling Touchpad - 2 fingers scrolling, 2 finger tab for right click, tap and drag Brightness Control Download and Install Karabiner-Elements Launch Karabiner-Elements Copy karabiner.json to ~/.config/Karabiner karabiner.json.zip or copy the settings according to diagram below Now use F11 & F12 for Brightness, use F1, F2, & F3 for Volumes Control