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macOS 11 Big Sur Installer Not Launching

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Nov 19, 2020
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Motherboard
Lenovo Flex 5-1570
CPU
i7-7500U
Graphics
Intel HD Graphics 620
Classic Mac
  1. 512K
  2. Color Classic
Mobile Phone
  1. iOS
Hello. I can't seem to get Big Sur to launch. I just get this error code. I'm not great at figuring out error codes, so can someone translate this for me? Thanks!
IMG_4461.jpg
 
Hello. I can't seem to get Big Sur to launch. I just get this error code. I'm not great at figuring out error codes, so can someone translate this for me? Thanks!
View attachment 497368
 
I looked at that. What question should I be looking under?
 
I looked at that. What question should I be looking under?
the problem reporting section, the opencore guide, post 2 of the opencore guide on various chipsets and what settings to make
 
Ok, thanks! I'll take a look.
 
I tried several times to install Big Sur on HP 250 G7 (i5-8265u) without success. It stops very early. Could someone, please, have a look and let me know what to change? Attached is my config.plist, log from last boot and a picture with the content of my EFI folder.
 

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  • EFI.png
    EFI.png
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  • config.plist
    25.3 KB · Views: 59
  • opencore-2018-02-23-150705.txt
    256 KB · Views: 59
I fixed this problem and boot loader moved to the next page. The following fix helped (troubleshooting section):
  • For older firmwares:
    • EnableWriteUnprotector -> True
    • RebuildAppleMemoryMap -> False
    • SyncRuntimePermissions -> False
Now it hangs on BuildActDeviceEntry exit!

Attached: screenshot of boot log, config.plist and content of my new EFI folder. Any idea how to move further? I am using OC 0.6.3.
 

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  • IMG_2618.JPG
    IMG_2618.JPG
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  • config.plist
    26 KB · Views: 54
  • EFI.png
    EFI.png
    135.2 KB · Views: 70
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