FN+Arrow Keys no longer change aura brightness of the keyboard Asus TUF A15 FA506IV

[Pan_Mrkvicka]

System: WIN10
Battery or AC: both
Model: FA506IV-AL029T
Frequency of occurrence: since some time instantly
Reset OS: yes, also fresh install of OS
Screenshot or video:
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Detailed description：
Hello,
since some time I found my FN+arrow up/down does not change my aura brightnes, It can be controlled via Armoury Crate SW, but did not react to FN anymore, all other FN functions without issue. I tried everything to solve the issue, all possible SW re-installed, even OS was re-installed,but issue persist, I found https://zentalk.asus.com/en/discussion/47711/fn-arrow-keys-no-longer-change-aura-brightness-of-the-k... but this is closed and I cannot contact person who helped. Can anyone please help me to solve this issue, raise compliant for SW/BIOS issue is not an sollution.
TIA
SN: L4NRCX003916145
FW:
Date 20220223
Version FA506IV.318
OS:
Edition Windows 10 Home
Version 21H2
Installed on ‎10/‎03/‎2022
OS build 19044.1682
Experience Windows Feature Experience Pack 120.2212.4170.0

[GEEK_ASUS]

Hi @Pan Mrkvicka ,
Please check your PM.
Thank you.

[GEEK_ASUS]

Hi @Pan Mrkvicka ,
We verified although you have simialr issue, but the model is different.
Since you already done all SW related troubleshooting steps.
We would suggest you contact service center to have further inspection.
Thank you.

[ASUS_Bot]

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