If you are having difficulties with the Lenovo Yoga-900-I3ISK2, try referring to the troubleshooting page.
Background and Identification
The Lenovo Yoga 900-13ISK2, also known as the Lenovo Yoga 4 Pro, is the fourth generation laptop in the Yoga series by Lenovo, released in September 2015. This model can be identified by its watchband hinge connecting the main chassis with the screen and by the name on the tag on the bottom of the laptop. The Lenovo Yoga-900-13ISK2 is an ultra thin 360° convertible laptop designed with looks and performance in mind. This version of the Yoga is slightly thicker and heavier than the Yoga 3 Pro, boasting a 6th generation Intel Skylake processor, a 3200x1800 pixel display, and improved battery life. The Lenovo Yoga 900-13ISK2 was replaced by the Yoga Book, Yoga 710, and Yoga 510 in 2016.