Asus VivoBook 15 - Keyboard backlight off randomly
- System: Windows 10 Home
- Battery or AC: AC (battery mode not yet tested)
- Model: K513EQ
- Frequency of occurrence: Random
- Reset OS: No
- Screenshot or video: No
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Detailed description：
Keyboard backlight will off while inactive for around 1 min, move mouse or press keyboard to turn on the backlight ,sometime it will never turn on the backlight even after moving mouse or press keyboard, required toggle F7 to turn back on the backlight.
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Hello yoonlim,
May you check if your BIOS version is 205 and all your Windows update has been completed?
And may you record a short video of the issue?
Thank you.
Yes BIOS is 205, and all the windows updated has been completed.
The issue is similar to
https://zentalk.asus.com/en/discussion/37412/backlight-not-coming-back-on
https://zentalk.asus.com/en/discussion/comment/129299
Attached is the video link, Keyboard backlight will off while inactive for around 1 min, move mouse or press keyboard to turn on the backlight ,sometime it will never turn on the backlight even after moving mouse or press keyboard, required toggle F7 to turn back on the backlight.
Hello yoonlim,
Does this issue happen in safe mode?
Thank you.
Hi,
Entered safe mode the backlight does not work at all (including all the hot key).
Thanks
Hello yoonlim,
Please kindly send the device to service center to check for the hardware.
Thank you.
And i found out restarting the ASUS Optimization service or toggle F7 will bring back the backlight. I think it is related to driver/software issues rather than hardware issues.
Hello yoonlim,
Well...that's special since it was not working in safe mode, I will keep record of it.
But anyway, glad that you found the solution.
Thank you for the update.
Hi,
It is not solution by using restarting the ASUS Optimization service or toggle F7.
We need Asus team to look into this issue and solve it.
Thanks
Hello yoonlim,
Please kindly send the device to service center
Thank you.
In safe mode "Asus Optimization" service can not be started. You may try it at you end and let me know the answer.