yuijzeon

Yes, I use SD Formatter to format my SD card on Windows (FAT32 File System)

 

Nothing happens when I insert the SD card into the computer

I think I made a mistake

SD card reader is recognized but not working

SD Card work on Windows

 

Camera is work great

 

The following is the EFI file and IOReg file

 

YUIJUHN‘s DELL E6440 2.zip

@Jake LoThank you very much!!!

 

Camera, SD Card Reader work now

 

 

@HervéI will try to fix it according to your instructions

 

Clarity EFI better than chaotic EFI

 

Thanks for your guidance

The file is too large to upload

I put it in my Google Deive

 

YUIJUHN‘s DELL E6440.zip

My Laptop: Latitude E6440

CPU: Intel i7-4600M

GPU: Intel Graphics HD 4600 (with 1920x1080 screen)

Wi-Fi: DW1550 (BCM94352HMB)

macOS Version: 11.3 (20E232)

OpenCore Version: 0.6.6

 

Hi Guys, I used to build EFI according to Dortania's OpenCore guide

It works on Catalina but doesn't work on Big Sur

I tried to use Jake Lo's E7440_OC_0.6.6 and replaced SSDT-EC.aml, SSDT-HPET.aml, SSDT-PLUG.aml inside

These aml files are created by SSDTTime

 

Fortunately I completed the installation

Wi-Fi, Bluetooth, Audio, USB3.0 and DVD work very good

TouchPad also work great but "More Gestures" doesn't work

Camera, SD Card Reader,Fingerprint recognition doesn't work

The battery always notices "Service Recommended"

These will not pose too much of a problem

But it would be better if it can be solved

 

Another problem

Very lagging when running some app like the built-in games "Chess"

I also tested "Minecraft". The situation is not that bad, but not as good as running under Windows