Lenovo 41786UU Laptop User Manual


 
Chapter 10. Troubleshooting
computer problems . . . . . . . . . 201
Diagnosing problems . . . . . . . . . . . . 201
Troubleshooting . . . . . . . . . . . . . . 202
Computer stops responding . . . . . . . 202
Spills on the keyboard . . . . . . . . . . 203
Error messages . . . . . . . . . . . . 203
Errors without messages . . . . . . . . . 205
Beep errors . . . . . . . . . . . . . . 206
Memory problems . . . . . . . . . . . 207
Modem and networking . . . . . . . . . 207
Keyboard and other pointing devices . . . . 214
Display and multimedia devices . . . . . . 215
Fingerprint reader problems. . . . . . . . 225
Battery and power . . . . . . . . . . . 225
Drives and other storage devices . . . . . 229
Software problems . . . . . . . . . . . 231
Ports and connectors . . . . . . . . . . 231
Universal Serial Bus problems. . . . . . . 232
A docking station or port replicator
problem . . . . . . . . . . . . . . . 232
Chapter 11. Getting support . . . . 233
Before you contact Lenovo . . . . . . . . . . 233
Register your computer . . . . . . . . . 233
Download system updates . . . . . . . . 233
Record information . . . . . . . . . . . 233
Getting help and service . . . . . . . . . . . 234
Using diagnostic programs . . . . . . . . 234
Lenovo Support Web site. . . . . . . . . 234
Calling Lenovo . . . . . . . . . . . . . 234
Purchasing additional services . . . . . . . . 235
Appendix A. Regulatory
information . . . . . . . . . . . . . 237
Wireless related information . . . . . . . . . 237
Location of the UltraConnect wireless
antennas . . . . . . . . . . . . . . . 238
Locating wireless regulatory notices . . . . 240
Export classication notice . . . . . . . . . . 241
Electronic emission notices. . . . . . . . . . 241
Federal Communications Commission
Declaration of Conformity . . . . . . . . 241
Industry Canada Class B emission compliance
statement . . . . . . . . . . . . . . . 241
European Union - Compliance to the
Electromagnetic Compatibility Directive . . . 241
German Class B compliance statement . . . 242
Korea Class B compliance statement . . . . 242
Japanese VCCI Class B statement . . . . . 243
Japan compliance statement for products
which connect to the power mains with
rated current less than or equal to 20 A per
phase . . . . . . . . . . . . . . . . 243
Lenovo product service information for
Taiwan . . . . . . . . . . . . . . . . 243
Additional regulatory information . . . . . . . 243
Appendix B. WEEE and recycling
statements . . . . . . . . . . . . . 245
Important WEEE Information . . . . . . . . . 245
Battery recycling information for Japan . . . . . 245
Battery recycling information for Brazil . . . . . 246
Battery recycling information for Taiwan. . . . . 246
Battery recycling information for European
Union . . . . . . . . . . . . . . . . . . 247
Battery recycling information for United States and
Canada . . . . . . . . . . . . . . . . . 247
Appendix C. Notices. . . . . . . . . 249
Trademarks . . . . . . . . . . . . . . . . 250
Appendix D. Restriction of Hazardous
Substances Directive (RoHS) . . . . 251
China RoHS. . . . . . . . . . . . . . . . 251
Turkish RoHS . . . . . . . . . . . . . . . 251
Ukraine RoHS . . . . . . . . . . . . . . . 251
India RoHS . . . . . . . . . . . . . . . . 252
© Copyright Lenovo 2011
iii