A:Answer I haven't had that problem and would say its a defective unit and you shouldn't have waited So long to have it serviced. lenovo offers better extended warranties than Best Buy Total Tech and Some plans include a tech coming to your home and fixing it Versus having to send it off. My lenovo Yoga 730 needed a new keyboard, mother board, battery, and I made them replace the generic OEM wifi card because they were all garbage, and the power supply...the only thing that wasn't replaced was the display screen and I never want a day without my laptop So worth extra $ 80 to $100 for premium extended warranty.