Keyboard backlight turns on without pressing any button

[ank7471]

Hi HP Community members,

I am Ankit from India using HP Pavillion AB516TX notebook running on Windows 10.   Off late I have witnessed a unique problem of backlight turning on automatically without pressing any key

Also I try to turn it off using the backlight key, it turns off for a few secs and turns on again.

I can press numeric keys 5/6/7 also to turn it off and then it turns on again.

Sometimes, it turns on as I switch on the notebook

Can you suggest a solution. Or how to disable the backlight permanently 

[Echo_Lake]

@ank7471

Thank you for posting on the HP Support Community.

Don't worry as I'll be glad to help, however, to provide an accurate resolution, I need a few more details:

• Did this happen after a recent window or software update?
• Have you made any hardware/software changes?
• Did you make any changes on the settings of your PC prior to the issue?
• When was the last time it worked fine?

While you respond to that, let's try these steps: 

Hard Reset: Follow steps from the link: https://hp.care/2GnkMa8. (do not skip any troubleshooting steps even if you feel steps are repeating)

BIOS default: 

1. Turn off the computer and wait five seconds.
2. Press the Power button to start the computer and repeatedly press the F10 key to enter the BIOS setup menu.
3. On the BIOS Setup screen, press F9 to select and load the BIOS Setup Default settings.
4. Press F10 to Save and Exit.
5. Use the arrow keys to select Yes, then press Enter when asked Exit Saving Changes?
6. Follow the prompts to restart your computer. 

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.