Hello Friends ! 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.
First let programmers to remove password bios. https://vinafix.vn/threads/samsung-np530u4e.16027/#post-29034
Hi ThienBui, Thank for your answer. How is it possible without any access ? I can't boot from usb and when I click on the security block (or an other block) nothing appear (or sometimes a full green screen).
Yes, it could be. I tried a reflow on yesterday but that's taken no effect. An GPU can just display partial things if it's broken ? I already have GPU problem on many laptop. There displayed nothing on the laptop screen and on a external screen, and can't do anything. Reflow sometimes worked. But here I think it's a different issue. What else should I do to check if this is a GPU error, or BIOS (maybe both) ?