First I apologize for the poor English...
cpu - i5 760 Lynnfield first gen 2.8 GHz
ram - 4GB
mainboard - intel DH55PJ 2011 motherboard (Legacy bios only guys!)
Gpu - Nvidia 9500GT 512 MB video card (hackintosh sierra run perfectly)
Ethernet - intel 82578DC Gigabit Ethernet my EFI folder - https://drive.google.com/drive/folders/1_thJU-tCDnMlsfk8E_69oR9kdCjIRtW8?usp=sharing
sound - Realtek high definition audio
guys! now I perfectly run mac os sierra. I'm student south Asian country. I'm learning python programing and iOS apps developing my self . The old operating system(sierra) does not allow other necessary resources to run .I have been wanting to update the operating system for some time. But I failed to do it alone. I'm from a low-income family and I'm not able to keep up with other computer hardware updates. You can refer to the EFI file I am currently using and give me some advice to update mac os Catalina
EFI.rar