NP300 cannot get into BIOS or boot from disk

[Tagami]

I have problem with my laptop Samsung NP300-E5C-A02PL. I had there Linux Ubuntu, but I decided to change system to Windows 10 (It was working before... let's say 1 year ago).

At the boot time I only can see black screen or screen like below:

I'm not able to boot from disk or even get into BIOS.

I read lots of posts about similar issue, but nothing helped, so I decided to ask you about it. I've already tried:
- using other keys on boot (F3 works for booting from CD, F8 or F9 from USB)
- using external keyboard on USB and pushing F2 and other keys
- take off BIOS battery for 30 sec
- connect together pins RESET on the motherboard for 30 sec
- install Windows 10 using MBR (diskpart -> convert mbr)
- install Windows 10 using GPT (diskpart -> convert gpt)
- install Ubuntu (old - 9.04) on other partition

 

[webworkings]

Hmm, Have you tried booting in "Safe Mode" to see if it does anything?

If that doesn't work, then I would hazard a guess that the drive has been somehow corrupted or even erased. You could try connecting it to another computer, and see if you can read the drive and determine what is on it, if anything.