Brightness functions not working (f5 and f6) Z book 15u g3

[arina_puz]

After reinstalling my laptop the brightness keys have stopped functioning and brightness must be altered manually through the settings. 

All other fucntion keys are functioning normally. 

[VishalGS]

Hi,

As per quick specs Zbook 15u G3  does not support Win 10 32 bit, but it supports Windows 10 64 bit.

Please find all supported OS in below link:

http://www8.hp.com/h20195/v2/GetDocument.aspx?docname=c04832538

For display brightness key issue, you need to update "Display drivers", "Chipset Drivers"  & "Hot Key drivers"

Driver page for windows 10 64 bit

https://support.hp.com/in-en/drivers/selfservice/hp-zbook-15u-g3-mobile-workstation/8693764

If issue persist please feel free to contact HP :

http://welcome.hp.com/country/w1/en/contact_us.html

For Phone assistance
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html

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If your problem is solved , please click the Accepted Solution button

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Good Luck !!!