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@TechAndrew Give this a try, updated to 0.7.7 Removed / disabled some unnecessary kexts EFI.zip

Does not look different to me. Properties injection for DW1820A don't look like they're being injected. If you disable Wireless in your BIOS settings, there should be a difference... In addition, what are the reasons for using: SKL framebuffer 0x191B0000 rather than 0x19160000? SSDT-AC + SSDT-DMAC + SSDT-MCHC-SBUS + SSDT_OCWorkDell patched tables? add-on kexts such as FeatureUnlock + Intel & Broadcom Bluetooth firmware + NoTouchID + Sinetek-rtsx + VoodooI2C + CPUFriend? Your SSDT-EC-USBX_Laptop patched table looks wrong to me and could also cause a system freeze. I suggest you download the table from Dortania's web site. I have a much simpler set of ACPI tables and kexts on my E7270 and all works perfectly well. Looks like you've thrown all sort of (inappropriate) things at your E7470. I would suggest you seek inspiration out of Jake's guide: https://osxlatitude.com/forums/topic/9179-dell-latitude-e7x70-clover-and-opencore