Lenovo IDEAPAD Z460 User Manual page 71

If your product is not working correctly,
DO NOT RETURN IT TO THE STORE.
For technical assistance, contact a Lenovo
support specialist 24 hours a day by calling toll
free 1-877-4 LENOVO (1-877-453-6686).
Additionally, you can find support information
and updates on the Lenovo Web site located at
http://consumersupport.lenovo.com.
* Only for the users from the United States.