Problems with Opencore on Lenovo Laptop

Good evening everyone, I'm new to this subreddit so I apologize if I break a few rules, in any case I had a question for you. This past week my friend and I have been trying to do a hackintosh on a lenovo laptop with an Intel Broadwell on which we wanted to install Big Sur. At the first attempt it started the boot and then stopped at the first part of the Verbose Boot, after realizing that we had made a mistake with the EFI we did it all over again but now we can only get to the selection section of Opencore (where it is shown only "1 : Windows 2: Windows 3: Reset NVRam"). The problem is that there is no longer the installation usb from which opencore itself starts. We tried to change the usb, redo the efi from scratch and change some values ​​on the config.plist that the Opencore guide advised us to change if it didn't start but nothing has changed. Do you know how to help us? The CPU should be an i5-5200U (with HD 5500 graphics), there is no dGPU (or rather we have a gtx 920M but we have disabled it from the boot-args), if you need more information ask.

PS: As SMBIOS we used "MacBookPro11,4"

submitted by /u/jackKun__
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