Brightness increase (fn+f10) & decrease (fn+f9) not working on my Probook 450 G1

[Anoy121]

Hi, my hp proobook 450 G1 Brightness increase by (fn+f10) & decrease by (fn+f9) suddenly stopped working from yesterday.
But i can change sound to use the
key [fn+f6] and [fn+f7]

also i have a problem on my left button(controler left button) . My up,down,right button is working properly but left button is working as backspace 😞
Now what can i do?
anybody help me for that please.
Thanks in Advance 🙂

[madtechnicians]

1st check if those buttons are working without FN.

It may has bug (happents) maybe they are working without FN

2nd Check for Viurs as in those 10 days a lot of people have issue with keyboard missfuction  cause of virus.

3nd If you are sure that is hardware problem then proceed with keyboard replacement or take it to authorise service to check it.

[erico · Accepted solution]

---

@Anoy121 wrote:
Hi, my hp proobook 450 G1 Brightness increase by (fn+f10) & decrease by (fn+f9) suddenly stopped working from yesterday.
But i can change sound to use the
key [fn+f6] and [fn+f7]

also i have a problem on my left button(controler left button) . My up,down,right button is working properly but left button is working as backspace 😞
Now what can i do?
anybody help me for that please.
Thanks in Advance 🙂

---

450 G1 Brightness increase by (fn+f10) & decrease by (fn+f9) suddenly stopped working from yesterday. Check in the BIOS to see how the action key option is set to operate.

"also i have a problem on my left button(controler left button) . My up,down,right button is working properly but left button is working as backspace 😞"  That is a normal operation mode for that particular key

[Anoy121]

I have already checked 🙂 but those button are not working without FN. 😞

ok 🙂 i am checking for virus.
thank u for your kind information.

@madtechnicians

[Anoy121]

thank u for your information 🙂
but as far i know the Brightness increase & decrease option key is fixed 🙂 & can't be changed to other key 😛

thank u 🙂


@erico