My UX370 Zenbook Flip does not work.

[seachange2000]

System:
Battery or AC:
Model:
Frequency of occurrence:
Reset OS:
Screenshot or video:
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Detailed description：The backlit keyboard only works for the first restart after using the latest ATK repair package. Asus technicians want me to send it back but I am sure it is a software issue which I should be able to fix at home. It initially works perfectly but after a second restart just disappears.
Any ideas?
Thanks in advance,
Bruce

[Blake_ASUS]

Hello Bruce,
May you update BIOS to 311?
and for the speaker, yes, it might need a hardware check.
For your warranty, please provide SN in the PM send you, let me check for you.
Thank you.

[laptoptitan]

I think it is the driver. Try downgrading the Windows 10 operating system. Good Luck !