HP-15 (LA-A996P, rev1.0) can't see OS in any media (HDD, USB, etc)

[george-a]

Hi guys,

I know this is not Apple but I think duke handles those, too.


This one turns on properly, enters the BIOS if necessary but can not see OS in any attached media. Can see there is a HDD or a USB connected but won't load the OS (Windows, Linux, whatnot)

Legacy boot is enabled, secure boot disabled in BIOS settings.

I have reprogrammed the main BIOS as well as the controller firmware (KB9012) and the behavior remains the same.

Any ideas?

br,
george

 

[dukefawks]

No idea, put back original BIOS cause of Windows activation codes. Enable UEFI, you really trying to boot 7 on this thing?

 

[george-a]

well I have the backup BIOS so that won't be an issue but it does not boot anything either Windows 7, or Linux for that matter.. I was just wondering if you have seen this behavior (of not seeing the OS in the HDD) before..

cheers dude. we move on

 

[dukefawks]

This should only boot win8/10 in UEFI mode. I bet there is nothing wrong with this machine, just use the correct bootable device which is a UEFI USB stick with win10.

 

[george-a]

but I have already changed that in the BIOS. I enabled legacy boot and disabled secure boot options. I have tested these laptops in the past with Live Linux USBs. They fail a lot, mostly their BIOSes get corrupted or their 3.3/5V supply. I have repaired a few so far but only this one can't see any OS - I did not try Win10 UEFI but I guarantee you that I have setup the BIOS in such a way that its not obligatory.

 

[dukefawks]

So you tried all the stuff that is hardly supported and not the one thing these machines are really made for. 99% it will work fine with UEFI boot.

 

[george-a]

ok this was the solution: RE-ENABLE secure boot as if you will use UEFI boot media and then DISABLE it again (asks for a 4-digit code + ENTER). It now boots from legacy USB and HDD. mofo computer - you were right of course - I just didn't have a spare HDD with UEFI installation and since I made the correct BIOS settings for legacy boot my brain would not accept failure

thanks duke.