Forwarding you to

How to repair the parts that explode in Lenovo Yoga laptops | Adam Munich

Lenovo Yoga laptops, especially those from the “900”, “920”, “930”, and “940” series, have a design defect where their power circuitry can self-destruct. The company will not acknowledge this defect as serious enough for a recall, and has left many customers with broken audio (or worse) on their notebooks.