I don't have any original bios backup. Could I get some advice here or some post here how can I do this?...

Machine model number: X4N07AV
Serial number: 5CG7261RTW
board model number: HP 82AA PGDQK00WB832Y2 KBC Version 49.35
bios: P83 Ver. 01.03 5CG7261RTW HPQOEM - 0

Could someone help me what to do and how to do it? I bought an HP probook 650g3 laptop and found a locked bios at home. I tried various tutorials, none of them helped. I finally found a forum where I could unlock the bios. I downloaded RCUnlocker v1.0, I move the bin file to it, it says bios unlocked. After restarting the laptop, where I try f10 in the bios, it still needs a password. What am I doing wrong?

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