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Bluetooth driver disappear(sometime WIFI too)

fortinder74
Star II
System: WIN10 vr. 20H2
BIOS vr. 309
Battery or AC: Both
Model: zenbook UX333FN
Frequency of occurrence: every restart or wake up.
Reset OS: Yes
WIFI: Intel wireless AC 9560 160MHz
Screenshot or video:
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Detailed description:
Since last week I have a problem with Bluetooth drivers.
The drivers disappear from the device manager and appear under "Hidden devices".
Sometimes the WIFI driver disappears with the Bluetooth too.
An "unknown USB device" appears in Device Manager.
I'm not sure if this is a hardware or software problem.
I manage to bring the devices back to life after "returning to defaults" in the BIOS or reinstalling it (even for the same version).
But the above solution is only temporary.
After restarting or waking from sleep, the drivers disappears again.

I discovered another problem that may be related ...
When I listen to an internet radio, after a few minutes, when the screen turns off, the music starts to sounds jumpy.
 
Things I tried:
1. Windows troubleshooter - completely ridiculous.
2. Update /downgrade version drivers.
3. Update windows to the latest updates.
4. Update /downgrade BIOS version.
5. start the "Bluetooth support service" at services.msc , and setting it to "automatic" startup.
6. Disable "fast-restart" in power management settings.
5. Empty the battery.
6. Restore windows to factory settings.
1 REPLY 1

Blake_ASUS
Community Legend II
Hello fortinder74,
Please kindly send the device to service center.
Sorry for the inconvenience caused.
Thank you very much.