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I tried various EFIs, but most of them are for i5 processor. I tried one witch built for i7 with no success. Unfortunately I cannot find any compatible EFI even for Ventura. I am stuck to Catalina.

Hello I am planing to upgrade my Lenovo yoga c740 from Catalina to Sonoma. Has anyone tried to create an EFI and install Sonoma on: Yoga C740-14IML Laptop (Lenovo) - Type 81TC FHD IPS display Multi-Touch Intel® Core™ i7-10510U Intel UHD Graphics 630 (Mobile) / GPU VRAM: 1536 MB Samsung SSD 970...

Has anyone test it or create an EFI for MacOs Ventura?

Hello, This can work only with OC v0.6.3?

Has anyone make internal microphone and Wifi working on Catalina?

I follow your instructions with OC EFI and Catalina booted normally. Thank you. Unfortunately I saw that as Clover EFI, Wifi card is not recognised, the internal microphone is not working at all, the audio via HDMI is not working and when I connect for first time after boot an external monitor I...

You mean to select generate to Serial number and UUID?

I have already installed 10.15.7 with Clover and I tried to use the opencore EFI you attached. When I turn the laptop on and after I pressed F12 (as with clover do), the mac partition was found. When I select it the Prohibit icon is appearing. Any ideas? I try to understand if the problem is...

Hello. Edd104 with your attached Efi are wifi, internal microphone and connecting external monitor working properly?

Hello again MartinK have you any update about the microphone? I tried several things but the internal mic is not working. If I connect headset to the jack the external mic is working properly.

Which are your Bios settings? What I have to be change?

I tried again but same thing happened. To be sure for my movements, the procedure I followed was: I create a Catalina installation media via terminal, I mount EFI partition and then I dragged and dropped the attachment EFI Folder. Do anything wrong?

Hello again MartinK have you any update about the booting without F12 and the wifi? Finally for the connection of external monitor, I saw that if I have it connected I will have to close the lid and open it again to work both of them. Edd1024 I tried to install both Catallina and BigSur with...

When you power on the laptop do you press F12 to choose start up disk?

Did you try to change BIOS settings so both the Intel trust tech and secure boot to be disabled?

I had the same problem. Perhaps the kext of intel SSD is not working properly. When I replaced the intel ssd with a Samsung Evo, the installation was successful at once.

Martin you absolutely right. Thank you again. After a successfully installation I tried to connect an external monitor and the laptop's screen becomes grey. After unplug the hdmi and plug it again nothing happened. I cannot use both laptop and external monitor. I also tried to change...

MartinK thank you very much. With your EFI I have successfully installed os 10.15 Catalina to my external ssd, but after the first restart the mouse was very slow and after the second restart I cannot boot the os. It stuck every time to apple logo. Have you any idea?

Has anyone make Lenovo c740 hackintosh? I have stuck waiting 10th generation intel cpu support!!!

Any update from anyone?