If you are having difficulties with the Lenovo IdeaPad Yoga 13, try referring to the troubleshooting page.
Background and Identification
The Lenovo IdeaPad Yoga 13 is a touchscreen laptop computer released in October 2012. This model is identified by a sticker on the bottom of the device stating its full name and model number ("Lenovo IdeaPad Yoga 13, Model Name: 20175").
The IdeaPad Yoga 13 is a double-hinged folding laptop, allowing the user to type like a standard computer or interact with the touchscreen in a tablet-like mode. It is thinner than comparable convertible laptops, and includes an Intel i3/i5/i7 processor, up to 8GB of RAM, and a 128GB or 256GB SSD. Its capacitive touch display is 13.3", 1600x900 pixels, and responds to up to 10-finger input and uses an IPS panel for wide viewing angles. There is a 720p webcam located above the screen. Ports include a power input, a USB 2.0 port, a USB 3.0 port, an HDMI-out port, an SD card reader, and a combo input/output 3.5mm audio jack.
This model was succeeded by the Lenovo Yoga 2 Pro in October 2013.
Lenovo IdeaPad Yoga 13 User Guide (PDF link)