Black screen on startup after bios change

[natcos]

Hi
I have a Octane IV bought from PCSpecialist in late 2017. I was attempting to check things in my bios to see if my laptop could upgrade to windows 11. Since doing this when I have gone to restart my laptop the screen stays blank. I think I may have changed a setting without realising and also saved by accident. I do not know what setting has changed. On starting the computer the keyboard lights up, the fans turn on, the hard disk led briefly flashes and the computer sounds like its running normally, just there is no screen.

After unplugging the laptop and removing the main battery, I tried resetting the cmos by unplugging the battery with the red and black cable under the keyboard and leaving it unplugged for 15 mins (I also pressed the power button multiple times to help drain anything). This did not change anything. I understand that I can possibly use a cmos jumper on the laptop, but I cannot find where that would be and I cannot locate anything about it in the manual.

Does anyone have any ideas as to what I could do?

Thanks!

 

[Martinr36]

can you get back into the BIOS, if so you should find a button to set the BIOS back to default settings, the best way to find out if you can upgrade to 11 is to use the windows tool or look under updates in settings

 

[SpyderTracks]

Hi
I have a Octane IV bought from PCSpecialist in late 2017. I was attempting to check things in my bios to see if my laptop could upgrade to windows 11. Since doing this when I have gone to restart my laptop the screen stays blank. I think I may have changed a setting without realising and also saved by accident. I do not know what setting has changed. On starting the computer the keyboard lights up, the fans turn on, the hard disk led briefly flashes and the computer sounds like its running normally, just there is no screen.

After unplugging the laptop and removing the main battery, I tried resetting the cmos by unplugging the battery with the red and black cable under the keyboard and leaving it unplugged for 15 mins (I also pressed the power button multiple times to help drain anything). This did not change anything. I understand that I can possibly use a cmos jumper on the laptop, but I cannot find where that would be and I cannot locate anything about it in the manual.

Does anyone have any ideas as to what I could do?

Thanks!

I would contact PCS, if the CMOS reset isn't working, then there may be another issue.

 

[natcos]

Thanks for your replies. I think I would be able to get back into the bios if the screen turned on but it doesn't.
Yes I guess I will have to contact PCS

 

[Bhuna50]

Have you tried connecting to an external monitor? or HDMI to the TV?

 

[Martinr36]

Have you tried connecting to an external monitor? or HDMI to the TV?

Got to be worth a shot

 

[natcos]

Hi,
Yes, I tried connecting my laptop to the tv via hdmi and nothing appeared (I do not have an external monitor). I checked that I was doing it correctly by doing the same thing with an old working laptop. Would that suggest that something else is not loading before reaching the screen loading part?
Thanks for your suggestion.

 

[SpyderTracks]

Hi,
Yes, I tried connecting my laptop to the tv via hdmi and nothing appeared (I do not have an external monitor). I checked that I was doing it correctly by doing the same thing with an old working laptop. Would that suggest that something else is not loading before reaching the screen loading part?
Thanks for your suggestion.

It suggests the CMOS hasn't reset and the BIOS settings still are applied incorrectly.