Dzung Pham

Thank you @dave.stl. I have successfully booted into MacOS without the USB installer using your bootpack. Again, thank you for your help.

Hi @Jake Lo and @dave.stl, I had the exact issue described in the first post. I followed all replies (replace EFI folder and bootpack from Jake, and boot with the -disablegfxfirmware tag) in this topic and successfully installed Catalina 10.15.4. Then I did the post-install steps from Jake's guide. However, when I restart the system and boot to MacOS, I get the below error. I have tried to erase and install Catalina again multiple times and still get the same issue after restart the system. Dell Latitude E7470 i7-6650U, 16GB ,256GB SSD, QHD Touchscreen MacOS Catalina 10.15.4 Thank you.