Lenovo IdeaPad U550 User Manual download pdf (Page 97)

Appendix B. Use and care information

 Cleaning your computer keyboard

Absorb some isopropyl rubbing alcohol on a soft, dust-free cloth.

Wipe each keytop surface with the cloth. Wipe the keys one by one; if

you wipe several keys at a time, the cloth may hook onto an adjacent

key and possibly damage it. Make sure that no liquid drips onto or

between the keys.

Allow to dry.

To remove any crumbs and dust from beneath the keys, you can use a

camera blower with a brush or cool air from a hair drier.

Note: Avoid spraying cleaner directly on the display or the keyboard.

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IdeaPad U550 1
Contents 7
Important safety information 9
OneKey Rescue 17
System button 17
Fingerprint 17
First use 23
 Turn on the computer 24
 Shutting down your computer 25
 Checking battery status 26
 Charging the battery 26
 Removing the battery pack 27
 Handling the battery 28
Touchpad 29
Left click button 29
Right click button 29
 Gestures 30
Three-Finger Flick 31
 Function key combinations 33
 Inserting a memory card 36
 Removing a memory card 36
Mute button ( ) 42
 Using VeriFace™ 45
 Using passwords 45
 Fingerprint reader 46
Chapter 3. Using the Internet 47
 Hardware connection: 48
 Software configuration 48
Enabling wireless connection 50
Hardware connection 50
Software configuration 50
Inserting the SIM card 52
Removing the SIM card 53
 Introduction 55
Recovery 56
Chapter 5. Troubleshooting 58
Display problems 61
A Password problem 63
Sleep or hibernation problems 63
Computer screen problems 65
Sound problems 65
Battery problems 66
A hard disk drive problem 66
A startup problem 66
OneKey Rescue System problems 67
Other problems 67
 To replace the battery 69
 For outdoor use 89
 Data safety 90
 Other important tips 90
 Ergonomic information 92
 What if you are traveling? 93
 Questions about vision? 93
 What this warranty covers 99
 Use of personal information 103
 Limitation of liability 105
 Dispute resolution 106
 Other rights 107
 Lenovo Turkey address 108
 Types of warranty service 110
2 On-site Service 111
3 Courier or Depot Service 111
5 Product Exchange Service 112
Appendix E. Notices 115
 Wireless interoperability 120
 Korea Class B 130
 General recycling statement 131
Computers 134
Form Factor 137
I/O Ports 138

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Lenovo IdeaPad U550 User Manual Page 97

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