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‎05-31-2018 12:50 AM

HP Recommended
Product: HP ProBook 450 G5
Operating System: Microsoft Windows 10 (64-bit)

I have recently bought a HP ProBook 450 G5 and the F3 and F4 buttons are not working to alter the brightness, however, they still work in conjunction with alt, fn, etc. I can't seem to find anything in settings to fix this. Please help.

21 people had the same question
8 REPLIES 8

‎05-31-2018 01:04 AM

HP Recommended

Is there a key labelled "FN LOCK" ("function lock") button/key on the keyboard, to automatically add the "FN" modifier to the F3/F4 keys?

 

Personally, I use F3 to "search again" much more often than "FN-F3" to change the screen-brightness.

 

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‎05-31-2018 01:05 AM

HP Recommended

Installling the Hotkey support softpaq may resolve the issue.

https://support.hp.com/us-en/drivers/selfservice/swdetails/hp-probook-450-g5-notebook-pc/17047142/sw...

 

System Requirements

 Microsoft .NET Framework version 4.5 or later must be installed on the system before this update is run.


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‎05-31-2018 01:10 AM

HP Recommended

That article also cites:

 

Fixes:  Improves LAN/WLAN security on a system running Windows 10 with an Intel 8265 wireless LAN adapter installed.

 

I would never have expected this one SOFTPAQ to address both "hotkeys" and "network security". :Surprise:

 

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‎05-31-2018 01:17 AM

HP Recommended
@mdklassen wrote:

That article also cites:

 

Fixes:  Improves LAN/WLAN security on a system running Windows 10 with an Intel 8265 wireless LAN adapter installed.

 

I would never have expected this one SOFTPAQ to address both "hotkeys" and "network security". :Surprise:

 

Yep. Saw that. I also thought it was strange.


I am a volunteer forum member. If my suggestion helped you solve your issue, help others by marking that post as the accepted solution. Say thanks by clicking on the Yes button next to the "was this reply helpful?"



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‎05-31-2018 08:46 AM

HP Recommended

> Yep. Saw that. I also thought it was strange.

 

Very.

 

I would have expected that "hotkeys" refers to special buttons, labelled with icons such as 'envelope' or 'crescent moon' or 'globe', that are present on some "multi-media" keyboards, not to the F1-F12 keys.

 

But, of course, truth is stranger than fiction.

 

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‎05-31-2018 09:24 AM

HP Recommended

The brightness keys are auctually part of the set of special keys, according to the user manual for his notebook.

 

special_keys.png


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‎05-31-2018 10:19 AM

HP Recommended

Here's an image of a "multimedia" keyboard, with lots of extra buttons that are the "hotkeys":

 

 

 

Separately from the "hotkeys", notice that the F1-F12 keys each have "application" and "function" labelling.

 

On some computers, enter BIOS SETUP, to choose whether a simple key-press of one of the F-keys invokes the "application" mode (such as "search again" in the NOTEPAD application) or the "function" mode (such as "change brightness").

 

 

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‎08-31-2018 08:59 AM

HP Recommended

https://ftp.hp.com/pub/softpaq/sp88001-88500/sp88033.exe

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