Question Unable to enter bios

Jul 10, 2021
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Hi, I recently change my laptop os (windows 10) legacy bios to uefi after that I can't enter bios . When I press the bios key or F1 key and f12 key it doesn't respond. After that I change again partition scheme legacy bios
But my problem not resolved when I remove CMOS battery or Hard drive then only system showing system time error press F1 to enter bios

Bios mode:-. In bios mode not showing the system application menu

Not showing lenovo diognastic. It's like empty

Please help me ......
 

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