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HP EliteBook 850 G7 Notebook PC (8TP60AV)

Hi, after latest bios update (01.18.01 Rev.A) my notebook have several problems -

1.) WiFi stopped working. Doesn’t matter if it’s in OS or booted liveUSB. In windows give error 10 (can’t start device).

2.) there aren’t any output audio devices found. 

I tried several drivers, different OS but can’t make it work. In the past after clean windows OS install I saw wireless in user setup screen. Now it says there’s no network. I tried downgrade bios but that didn’t help either. Bios factory settings too. 

anyone facing same issue? Did HP released broken bios that destroyed my device? Warranty expired 1 month ago. 

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