Cant boot into opencore

So, finally after fixing my PC (the data on my HDD got corrupted after booting into OpenCore, so I couldn't boot to system nor even BIOS.), I decided to try to make hackintosh again. This time I fully followed the guide, so I hoped I won't have any more problems with this. I was so sure I won't encounter any more problems and... well... I was wrong. Here's a new problem. I can't boot into OpenCore. When I boot from my pendrive, all I see is black screen and a white blinking line. My current boot setting is UEFI+Legacy. When I change it to UEFI, then I can't boot from pendrive, because it doesn't appear in boot menu. I can't even boot to Windows, I can only boot to UEFI shell or BIOS. Any idea what can I do? :/