Hp 15-ac122tu laptop bios insydeh20 f.29 to insydeh20 f.11 in locked bios

BIOS/UEFI Modding BIOS Modding/Flashing Tools
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Hp 15-ac122tu laptop bios f.29 has no advanced menu and want to downgrade to f11 but bios is locked and doesn’t allows please help…