Lenovo IDEAPAD U150 User Manual download pdf (Page 64)

Chapter 5. Troubleshooting

The connected external

device does not work.

• Do not connect or disconnect any external device

cables other than Plug and Play (PnP) device while

the computer power is on; otherwise, you might

damage your computer.

• When using a high power consumption external

devices such as an external USB optical disk drive,

use external device power adapter. Otherwise, the

device may not be recognized, or system shut down

may result.

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IdeaPad U150 1
Respective Users 3
Contents 7
Important safety information 9
AC power 19
Kensington slot 19
Memory card slot 20
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
 Numeric keypad 32
 Function key combinations 33
OneKey Rescue System button 36
Mute button 36
 Using VeriFace™ 39
 Using passwords 39
 Inserting a memory card 41
 Removing a memory card 41
Chapter 3. Using the Internet 43
 Hardware connection: 44
 Software configuration 44
Enabling wireless connection 46
Hardware connection 46
Software configuration 46
Inserting the SIM card 48
Removing the SIM card 49
Pull the SIM card out 50
 Introduction 51
Recovery 52
Chapter 5. Troubleshooting 54
Display problems 57
A Password problem 58
Keyboard problems 59
Sleep or hibernation problems 59
Computer screen problems 61
Sound problems 61
Battery problems 62
A hard disk drive problem 62
A startup problem 62
OneKey Rescue System problems 63
Other problems 63
 To replace the battery 65
 For outdoor use 84
 Data safety 85
 Other important tips 85
 Ergonomic information 87
 What if you are traveling? 88
 Questions about vision? 88
 What this warranty covers 94
 Use of personal information 98
 Limitation of liability 100
 Dispute resolution 101
 Other rights 102
 Lenovo Turkey address 103
 Types of warranty service 105
2 On-site Service 106
3 Courier or Depot Service 106
5 Product Exchange Service 107
Appendix E. Notices 110
 Wireless interoperability 115
 Korea Class B 125
 General recycling statement 126
Computers 129
Form Factor 132
I/O Ports 133

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Lenovo IDEAPAD U150 User Manual Page 64

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