If you forgot your Laptop Bios Password don't worry, this video will show you how to Extract the Password from your Bios file without having to use a Bios file from another Laptop.
This method can work for some Lenovo devices, such as (IdeaPad, Miix, etc..) and this time will use a Bios file for a Lenovo IdeaPad 530S-14IKB Laptop.
Keyboard Scan Codes Website: www.win.tue.nl/~aeb/linux/kbd/scancodes-1
If you have any question leave it in the comments, I don't promise you will get the absolute answer but I will try to do my best.
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