Article 5Q9AC Can Not Access BIOS or Boot from USB

Can Not Access BIOS or Boot from USB

by
limotux
from LinuxQuestions.org on (#5Q9AC)
I am on EndeavourOS (Arch)
Somehow the F2 is not getting me into BIOS to modify anything. (tried most tricks I found. ESC, DEL, F10,...)
Another thing (not sure if it is related), I could never boot from a USB though I changed ISOs and flash drives.
I could get by F12 multiple menu having USB drive, when I select it it boots the installed EOS not from USB.

Reading and trying to find out:

[limo@lenovo ~]$ sudo systemctl reboot --firmware-setup
[sudo] password for limo:
Cannot indicate to EFI to boot into setup mode: Firmware does not support boot into firmware.
[limo@lenovo ~]$ test -d /sys/firmware/efi && echo UEFI || echo BIOS
UEFI
[limo@lenovo ~]$

Does this indicate anything?
How -if possible- I can get this to work

sudo systemctl reboot --firmware-setup

I noticed many posts everywhere complaining about unable to access BIOS.
What I mainly care now is booting from USB disk as I did before. If I can get access to BIOS that would be much better.
P.S. I installed this EOS from a USB flash drive.
Can any of the above be because I changed kernel to LTS from the default EOS kernel?

P.S. Strangely I can boot from the same USB flash disk which I installed my distro from. Any other USB flash disk.. nothing!latest?d=yIl2AUoC8zA latest?i=_mwksNP2TYE:R7qvwZTvU8I:F7zBnMy latest?i=_mwksNP2TYE:R7qvwZTvU8I:V_sGLiP latest?d=qj6IDK7rITs latest?i=_mwksNP2TYE:R7qvwZTvU8I:gIN9vFw_mwksNP2TYE
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