Laptop black screen problem not boot, not reset, not repair

[Sujit Karmakar1]

I upgrade my laptop from Windows 10 to windows 11.But my laptop became very slow so I decided to reset my laptop. When I reset my laptop from cloud it failed. After that black screen problem started.I tried to restore but it failed.I tried to reset factory setting it failed.I tried to uninstall updates it failed. I tried to boot from bios it failed.I tried to repair it failed.I tried to boot the laptop form bootable pendrive but EFI not detected.Now the laptop is open with black screen with cursor.Now what next to try? Kindly suggest.

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