sambow23 Posted September 30, 2017 Share Posted September 30, 2017 I finally got Computrace disabled, and reverted to BIOS A9, but I still have the issue. Link to comment Share on other sites More sharing options...
sambow23 Posted September 30, 2017 Share Posted September 30, 2017 I tried going down to A03, but it says the Firmware isn't signed. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted September 30, 2017 Moderators Share Posted September 30, 2017 I thought once it's enabled, it can't be disable. How did you do it? See if you could disable Signed Firmware Update before downgrading. http://www.dell.com/support/article/us/en/19/sln260647/the-latitude--optiplex-and-precision-systems-may-not-be-updated-to-a-higher-bios-version-patch-due-to-bios-upgrade?lang=en Link to comment Share on other sites More sharing options...
sambow23 Posted October 1, 2017 Share Posted October 1, 2017 I'm going to guess the person who originally purchased the laptop stopped paying for Computrace. And about the sign firmware, apparently there is no option in my BIOS to disable it, or I just haven't found it. Link to comment Share on other sites More sharing options...
sambow23 Posted October 1, 2017 Share Posted October 1, 2017 Yeah I can't find it, I guess I'm screwed huh? Anyway, thanks for helping me with everything else, couldn't get it to work at all without this awesome site. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted October 1, 2017 Moderators Share Posted October 1, 2017 can you try downgrading to other version beside A03? Link to comment Share on other sites More sharing options...
sambow23 Posted October 1, 2017 Share Posted October 1, 2017 Not really, the lowest I can go is A07, and I'm already on it. Link to comment Share on other sites More sharing options...
sambow23 Posted October 28, 2017 Share Posted October 28, 2017 I know it's been a while and all, but I got some good news for anyone with a BIOS newer than A03. macOS High Sierra seems to remove all of the graphical issues present in macOS Sierra or lower. Link to comment Share on other sites More sharing options...
surenmunoo Posted March 24, 2019 Share Posted March 24, 2019 On 11/6/2016 at 12:44 AM, karimtosh said: Dell E5430 non v-pro. CPU: intel core I5 2.69 GHz. Video: intel HD Graphics 4000. Resolution:(1600x900) Mem: 8Gb. Wifi: Atheros AR9285 (replacement). Ethernet: BCM 5761 Gigabit ethernet. 1. Create bootable usb Sierra and replace the EFI folder with this one bellow. 2. After OS installation, install all this kexts in /System/Library/Extensions with an kext installer. 3.Reboot. Good luck. EFI.zip Kexts.zip HI, Please help, i replaced the efi folder but when i enter into the usb on my laptop it just shows a picture of a clover and below that shows boot manager nothing else not boot menu nothing Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 24, 2019 Moderators Share Posted March 24, 2019 Re-install Clover on top with the latest version following these settings Install for UEFI booting only Install Clover in the ESP Drivers64UEFI\DataHubDxe-64 Drivers64UEFI\FSInject-64 Drivers64UEFI\SMCHelper-64 Drivers64UEFI\ApfsDriverLoader-64 Drivers64UEFI\AptioMemoryFix-64 Drivers64UEFI\PartitionDxe-64 Once done, check in /EFI/Clover/drivers64UEFI, the following are removed OsxAptioFix2Drv-64.efi OsxAptioFixDrv-64.efi EmuVariableUefi-64.efi OsxFatBinaryDrv-64.efi Link to comment Share on other sites More sharing options...
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