its not the powerbutton its a small button besides usually. nothing to worry about...

I know this is 3yo but the best method is to repeatedly press both F1 and F2 works every time better than wasting time especially on HDD

Only pressing Enter on the ThinkPad T14s 6th Gen (snapdragon) works.

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For any laptop, just google for your model code and service manual. Most major manufacturers have service manuals on their website. If you have a Novo button, that should be fine.

If you're on windows, you can click on start button, then power, then while pressing shift and click on restart.

Then navigate through to option saying something along the lines of UEFI setup menu or options.

When the pc is turning on press f12 or f10 it should work

There's generally a setting in the BIOS that allows you to adjust how long it waits for F1 on boot. Next time you get in, see if you can find it - then set it to about 5 seconds.

Here’s an easy way to get in: https://www.laptopmag.com/articles/access-bios-windows-10

You can also just hold down f1 until it pops up I’m pretty sure

If you select to boot off the flash drive and it goes into regular windows, there is an issue with how your flash drive was built, it is not bootable. It probably isn't UEFI compatible. You can use Rufus to make a UEFI one, or temporarily change your bios to allow booting from legacy devices and see if the USB will boot then.

It is a librebootet system. Libreboot is a substitute for the Bios.

Can confirm, that's an older version of Libreboot. I sell Librebooted machines heh.

Thats a librebooted BIOS, an open source BIOS replacement. It can be a tricky process so people often flip librebooted laptops for a profit. You can install a linux distro on it.

The drive was probably encrypted just because thats what a lot of security nerds do. You can probably just wipe it.

that is an awesome acquisition

libreboot bios

Reboot PC and press f2

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What key are you pressing?

The boot menu is usually F12 / delete

Bios is usually F1 / F2

OR you might have a little novo button on the side of your laptop. If that's the case, press it with tip of a pen and it should boot into bios.

Edit: sorry, just watched the video till the end, really don't know what's happening here

OK “I solved it”, I opened the computer and disconnected the hdd after that I took another computer and booted windows using ventoy (with rufus it didn't work), after that I entered the “system recovery” from the point where the needle enters the right side of my computer and finally I went to repair your computer>troubleshoot>UEFI FIRMWARE>security>secure boot(disabled)>boot>boot mode(UEFI)

I have Ideapad 320 15-IKB, I have a quite normal bios, with Hyperthreading options, but no voltage and clock speed tweaks, I think Lenovo just decided to put a less feature-packed bios on their cheaper laptops.