Dell 7559 - Bios 1.2.7 Update !

[SgtRoswell]

Dell computers often require config.plist/KernelAndKextPatches/DellSMBIOSPatch=true.
You have it set false.

Same error.

 

[RehabMan]

Same error.

SSDT-DiscreteSpoof.aml will require the _DSM->XDSM patch. You have it disabled.
Make sure you're using a USB2 stick.
Try all USB ports.
Also, you should check your BIOS settings.

 

[SgtRoswell]

Did EC Reset. Created different usb stick installer. Change ram slots, removed 2nd ssd. Tried all usb slots. Still the same error.

BIOS:
VT for Direct I/O off
AHCI of course
Advance Battery charging off
Secure Boot OFF
UEFI boot duh
Intel Software Gaurd off.
Firmware TPM Off
OPROM Off / On tried with both.

Tried with or without battery adapter. I have run out of ideas now and I guess I need to downgrade my bios and see.

SSDT-DiscreteSpoof.aml will require the _DSM->XDSM patch. You have it disabled.
Make sure you're using a USB2 stick.
Try all USB ports.
Also, you should check your BIOS settings.

 

[SgtRoswell]

To all the posters on this thread, kindly could you let me know your exact bios settings along with the version you have?

 

[missile0407]

To all the posters on this thread, kindly could you let me know your exact bios settings along with the version you have?

Hi, I'm using 7560. I got a similar BIOS update these days (1.3.0 -> 1.4.2). And no issue.
Although not a same laptop, I think you can try using OsxAptioFix2Drv-free2000 instead of OsxAptioFixDrv-64.

 

[RehabMan]

Did EC Reset. Created different usb stick installer. Change ram slots, removed 2nd ssd. Tried all usb slots. Still the same error.

BIOS:
VT for Direct I/O off
AHCI of course
Advance Battery charging off
Secure Boot OFF
UEFI boot duh
Intel Software Gaurd off.
Firmware TPM Off
OPROM Off / On tried with both.

Tried with or without battery adapter. I have run out of ideas now and I guess I need to downgrade my bios and see.

SATA-100-series-unsupported.kext is missing from Clover/kexts/Other.
You're using a USB2 stick?
You should try OsxAptioFix2Drv-64.efi instead of OsxAptioFixDrv-64.efi.
And try using VboxHfs-64.efi instead of HFSPlus.efi.

 

[daiyuyu]

Looks like I have to try usb with real mac

I had similar problem. But later found out the computer boots after unplug it. I fixed this problem by setting the ACPI/DropOem=true.

I now still have one last problem: after upgrading to 1.2.7, my BCM94352Z wifi card disappeared. Have no clue yet.

 

[RehabMan]

I had similar problem. But later found out the computer boots after unplug it. I fixed this problem by setting the ACPI/DropOem=true.

I now still have one last problem: after upgrading to 1.2.7, my BCM94352Z wifi card disappeared. Have no clue yet.

No "Problem Reporting" files attached.
Read FAQ, "Problem Reporting" again. Carefully. Attach all requested files/output.
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/
Use the tool mentioned in the FAQ, that way it is less likely you'll omit something.

 

[SgtRoswell]

SATA-100-series-unsupported.kext is missing from Clover/kexts/Other.
You're using a USB2 stick?
You should try OsxAptioFix2Drv-64.efi instead of OsxAptioFixDrv-64.efi.
And try using VboxHfs-64.efi instead of HFSPlus.efi.

None of the above worked. I have three usb sticks, two USB2 and one USB3 but none worked. I was though able to boot the installer on my HP 4540s though.

I have even downgraded my BIOS to last stable 1.2.5 but still the same error.

Thinking to remove all ssd and put only one back in to try.. honestly clueless at the moment.

 

[RehabMan]

None of the above worked. I have three usb sticks, two USB2 and one USB3 but none worked. I was though able to boot the installer on my HP 4540s though.

I have even downgraded my BIOS to last stable 1.2.5 but still the same error.

Thinking to remove all ssd and put only one back in to try.. honestly clueless at the moment.

No "Problem Reporting" files attached.
Read FAQ, "Problem Reporting" again. Carefully. Attach all requested files/output.
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/