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Hi @Jake Lo! I'm trying to (fresh) install the High Sierra on my "old" Dell 3480. I've tried to use the settings that you gave me for 5480 and obviously it doesn't work. I've found here a working solution for 3450 and tried it too. The result was better, but I got myself stuck on this screen: The specs are: Dell 3480 BIOS 1.8.0 Intel Core i7-7500U 16 GB Video - Intel HD Graphics (not sure if its 620 or 520) Audio Realtek ALC3246 Wifi Qualcomm Wireless (probably DW1820) Find attached the origin folder with the ACPI dump. origin.zip And the EFI folder EFI.zip Can you help me? Cheers, Rafael Siqueira

Hi crew I installed fresh copy of HS on my E7440, and it runs smooth. But I ran into a problem with post installation guide. I get 'Attempting system restart.. MACH Reboot' when I restarted. I think it happens when I generate new Serial number. If you ask why I think that, it's because before I proceed with post installation guide, I wanted to check if I'm able to login with an apple ID. Instead I got 'Account limit reached', and after Googling I figured it's because of the serial number. So I generated one and restarted. Then it hit me with mach reboot. went back to previous config, and booted again fine and continued with post installation. Then again Mach reboot. P.S: Tried MacBookAir6,1/6,2 , both same result. P.S2: File System: HFS+ Clover Installer: v4289 Clover Configurator: v4.55