10-26-2013 06:43 AM
10-27-2013 04:42 PM
I succsssfully installed BIOS_S400u_6dcn96ww.
After upgrade the BIOS and installed Windows 7, it need to install Intel Video driver.
Then the brightness is fixed.
I only say the Lenovo Support is very poor.
11-08-2013 10:25 AM
first i installed the software update on my S400 Win8 laptop.
but i can't enter bios anymore :-/
--> Fn-Button and F2 doesn't work.
does anyone know, how i can enter bios now?
does the software change the key combination or something like that?
11-08-2013 03:46 PM
Do u press the button of Nova Button (the edge of top left) to power on and enter bios ?
When the computer is off, press this button to start the Lenovo OneKey
Recovery system or the BIOS setup utility, or to enter the boot menu.
11-09-2013 02:37 AM
Well, you can try all combinations possible.. like F10, fn+F10, ESC, F11, F12, fn+F11, fn+F12, F9, Shft+F2... I have no problens after upgrade to enterr on bios.. but I made the process to upgrade in win7, not in win8..
You can try remove the battery and power chord for a fews minutes and try again..
11-09-2013 05:47 PM
11-18-2013 08:49 PM - edited 11-18-2013 09:15 PM
So I just updated to Windows 8.1 and the brightness problem is still a problem. Lenovo even went ahead and updated their drivers to 8.1 yet they can't even fix the brightness issue?
Well it looks like there was a bios update which I already had flashed before, but that only fixes the Windows 7 issue. Guess I may have to revert back to Windows 8 or something.
Update: I figured out what the problem was. I installed the latest Lenovo AMD drivers for windows 8.1 and that was what caused the brightness control to stop working. I reinstalled the Windows 8 one and its working again.
Wait, you mean you went back DOWN to Windows 8.0?
I have the same problem, I think S405 works ONLY with Windows 8.0 is that it? I just upgraded to 8.1 because wifi card was not behaving properly in 8.0 and nothing I tried was able to correct the issue, so It seemed like 8.1 was the only way to fix it.
Now the screen is fixed dim, cannot adjust brightness at all.
Please tell me if you were able to fix the brightness issue?
This fixed the issue on 8.1
12-17-2013 11:14 AM
THANK YOU, Enfortel!!!! Worked like a charm! Was leary (don't know the Portugese for that word), about downloading and the signup requirement...worried about virus or some such BS.
Nice and bright again! YES!