First of all, thanks for all of your documentations, bios etc. ! Very nice

I'm come on this forum because i've a very strange problem with a NP530U4E.
This laptop was a gift from LDLC to my association Atelier Soudé (collaborative electronic repair).
There is black screen when the computer starts but i've plugged it on a TV with HDMI.
First, i've predicted a GPU issue but... now I think is a BIOS issue.
I explain : when I plug the hdmi, the laptop said "press F4" because no disk is present.
So, i hold F4 and look at what it's appear :

I'm usually a Linux user and I think that is the "windows 8 like" bios, isn't it ?
But all of the colored board is broken, I cannot do anything with that. Juste navigate over the blocks. But nothing worked...
F2, ESC etc. doesn't work.
By holding F10 before start up, I can access to the boot menu, but can't boot on usb (to flash the bios or run Linux) because i've no access on the bios to enable the UEFI mode !
If I hit enter, the colored bios appear again... and again... and again can't do anything.
That's crazy ! It makes me crazy.
I've already try to reset CMOS, change the button battery... RAM etc.
Any idea about that ?
Thanks,
Best regards.