System: W10 64bit Battery or AC: both Model: UX333FLC Frequency of occurrence: first time Reset OS: it's hardware problem... Screenshot or video: ======================== Detailed description：While laptop was on, it shut down when I pluged USB key, total power loss, looks like short circuit of some sort. (I was using that USB before)... It's purchased 14 months ago, warranty expired 2 months ago. All LED indicators are dead, looks like motherboard is gone. I, of course tried everything, disconnect charger and battery, hold power button for 1min to discharge potential static, but it didn't help. No sigh of life. Charger is delivering 20.2V DC in idle, so it's not charger. It's shame that laptop in this price point (over €1000) died after 14 months, and I was using it very rarely / very little working hours.