System: ZenBook 14 OLED
Battery or AC: Battery and AC
Frequency of occurrence: Always
Reset OS: No
Screenshot or video: No
Detailed description：After initial cleanup and windows update installation Bios update was run automatically, I confirmed update, waited for completion and after i got confirmation of success I pressed enter key, laptop went black, and didn't show anything on screen afterwards. I have tried to hard reset it by disconnecting AC and holding power button for 30 - 40 seconds and reconnecting AC and pressing power button, but I still get black screen.
I have also tried to connect external monitor to HDMI, but also had no display output (monitor reported no signal).
Is there a way to run BIOS update from USB stick like on some motherboards? Or do I already have to send it for service?