Lenovo IdeaPad U455 Lenovo IdeaPad U455 User Guide V1.0 - Page 7
Contents, Appendix A. Getting help
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Contents Important safety information...... iii Important safety information ....iii Chapter 1. Getting to know your computer 1 Top view 1 Left-side view 4 Right-side view 5 Bottom view 6 Chapter 2. Learning the basics ... 8 First use 8 Using AC adapter and battery 11 Using the touchpad 14 Using the keyboard 17 Connecting external devices..... 20 Switching GPU (Select models only 23 Special keys and buttons........... 25 System status indicators 27 Securing your computer 28 Chapter 3. Using the Internet .... 31 Wired connection 31 Wireless connection 33 Chapter 4. OneKey Rescue system 39 OneKey Rescue system 39 Chapter 5. Troubleshooting .......42 Frequently Asked Questions ....42 Troubleshooting 45 Chapter 6. Upgrading and replacing devices 53 Replacing the battery 53 Replacing the hard disk drive 55 Replacing memory 59 Appendix A. Getting help and service 64 Getting help on the Web ...........65 Calling the customer support center 65 Getting help around the world 68 Lenovo warranty service telephone numbers 68 i
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