OpenCore-0.6.1
Latest Kexts for Big-Sur-Public-Beta4 and added Kexts for Broadcom/AzureWave Wifi mini-pci.
Credits to and based off efi of @Sasha_77 https://www.hackintosh-forum.de/forum/thread/33617-lenovo-thinkpad-t530-i7-3630qm/?postID=349767#post349767
Fixed with English installer and updated OpenCore for BigSur.
Follow @mighildotcom for Bios and Installation Guide. https://github.com/mighildotcom/ThinkPad-T530-Hackintosh
Please Hackintosh first to Catalina with @mighildotcom guide, It will just makes things easier for you!
http://swcdn.apple.com/content/downloads/46/56/001-34223-A_QIYG1DL7MO/igh8xp5qsam...allAssistant.pkg
After Succesfully installing, folllow guide to make BigSur USB installer with video: https://youtu.be/_0_vDxycdhs
https://mackie100projects.altervista.org/download-opencore-configurator/
Mount your USB installers efi partition using the OpenCore Configurator and copy https://github.com/osbaldov/T530-BigSur-EFI.git efi folder to partition.