Lenovo S531 hangs on Splashscreen - BIOS corrupted?

Hi. Hi. As the subject explains, my Lenovo S531 is not booting into Windows/USB/CD, whatever, it simply can’t boot. It’s stuck in the. ThinkPad (To interrupt…) screen, and I can go into the BIOS, but the “Boot/Startup” Tab is missing for some reason. I’m sure that it’s not booting because of that missing “Startup” Tab in BIOS. Btw, the laptop was working perfectly fine hours ago (at the time I wrote this), after updating to the latest Windows 10 (2004), it froze, so I decided to hard power off the laptop, and since then it’s not booting. What could be the issue, and what I can “possibly” do to fix the issue? I really need the laptop…
I guess I need some kind of .bin file to reflash the BIOS chip, but when I extracted the BIOS from the .exe file with UEFITool, I get a 9MB file, shouldn’t it be 8MB?


p.s.: I checked the SSD (original OEM Lenovo/Samsung 250GB SSD), and it’s working fine, RAM module is also working fine.



Thanks in advance.