viii
Important safety information
Service and upgrades
Do NOT attempt to service a product yourself unless instructed to do
so by the customer support center or your documentation.
Attention:
• DO NOT take risks or attempt to diagnose the situation
yourself. Contact the customer support center for further
guidance. For a list of service and support phone numbers,
go to http://consumersupport.lenovo.com.
Lenovo provides documentation with instructions when it is
appropriate for customers to install options or replace units (CRUs).
Closely follow all instructions when installing or replacing parts.
Disconnect the attached power cords, battery pack, and all the cables
before you open the device covers, unless instructed otherwise in the
installation and configuration procedures.
Keep the covers closed whenever the computer is plugged in.
Summary of Contents for IdeaPad U455
Page 1: ...U455 User Guide V1 0 cover_1 4 Lenovo IdeaPad U455 User Guide V1 0 ...
Page 6: ......
Page 20: ...6 Chapter 1 Getting to know your computer Bottom view b f a e d c ...
Page 39: ...Chapter 2 Learning the basics 25 Special keys and buttons a b c d ...
Page 126: ...112 Appendix E Notices Lenovo Product Service Information Japanese VCCI Class B Statement ...
Page 140: ......
Page 142: ...New World New Thinking TM www lenovo com Lenovo China 2009 P N 147003082 Printed in China ...