I don’t like Windows, so tried out Ubuntu from a thumb drive and then installed Ubuntu 19.10 from the thumb drive (over-writing Windows). On rebooting, I just repeatedly re-entered the BIOS. So I thought it looked like I would have to set some BIOS setting. I saw an option to boot different operating systems (Windows, Android, Linux), so I chose Linux.
Now nothing. The keyboard lights up, but I only have a black screen. I can’t enter BIOS, which I think I did before with F7. I’ve tried some other keys for entering BIOS like Del, and Esc but nothing. Using the hard power button to switch the machine off and on, (then trying to enter BIOS), does nothing.
Any ideas of how to get into BIOS?