Hello kardesler, I got this old laptop that has the motherboard Vestel Digital "The Sun" 14MB03 (an old dual Core Turbo X with 2 GB RAM). Says its BIOS version is The Sun 0.06 11/10/2007, very old. But it's in decent quality so I wanted to install Linux on it but I was unsuccessful multiple times. I was in BIOS trying to find a setting for ACPI . I didn't find the setting and just chose "save settings" then "exit" respectively. But it froze, after about 15 minutes I just unplugged it and it turned out BIOS got bricked. I removed the CMOS battery but I wasn't able to find anything on the motherboard to reset it as well. So in short I just get black screen now. Any idea how CMOS gets reset on something like this or Turbo X Clevo etc. Vestel laptops? I read something about pressing Fn key and F2 or other buttons during powering up but nothing happens. Thanks in advance for your help.

Maybe you can wait a little bit longer while CMOS is removed.