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I have Catalina Beta 3 working on my E6540 but I still have 2 main issues I need to fix and would appreciate some assistance please. 1- Only the mouse USB and a 2GB USB are working but not if I insert an Additional SSD USB or Internal 2nd SSD Drive 2- HDMI works but sound is not synced properly to the Samsung TV Regarding the USB Do we need to find and replace any address in Kernel and Kext to Patch in the config as we did for 10.14.x? If I try to install AppleAHCIPort.kext into S/L/E under 10.15.x it will create a Kernel Panic upon boot and I cannot fix it after that.! I have attached my .EFI.zip Thank you

Thank you I just noticed the response. That's almost perfect The only issue is HDMI works but audio is not properly synced with the Samsung TV. Do I need to place vodooHDA in S/L/E or in Clover/Kexts/10.15 ? Also internal SSD is not detected even after placing AppleAHCIPort.kext in S/L/E as I needed to do that in 10.14.5. This one is also important as I need to get it fixed. Thanks again.

I have an issue with Mojave 10.14.5 on my E6540:- I got rid of the CD Drive and replaced it with a Caddy SATA drive to use a 2nd internal SSD. The second SSD not recognized by the MacOS but it is recognized correctly by Windows. The SSD drive is actually recognized if I use a normal SATA to USB adapter under MacOS but not when its inserted as an internal HD using the Caddy. I have just tried the kext in this post and its still not recognized actually !. NEVERMIND, I got it to work using the kext mentioned. I needed it to place the AppleAHCIPort.kext under S/L/E not Clover/Kexts/10.14

If someone has a completely working EFI for E6540 please share it. it needs some patching.

I have a black bar and UI paint issue as you drag Finder, it seems we have incompatible graphics ! I would like to use either AMD Graphics Card or HDMI4600 , Thanks,

I have it working also on E6540 but no audio or bluetooth as yet !, do you have these working? Thanks,