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BIOS menu . . . . . . . . . . . . . .
Using system management. . . . . . . . . .
problems . . . . . . . . . . . . . . . 57
General tips for preventing problems . . . . . .
Troubleshooting . . . . . . . . . . . . . .
Computer stops responding . . . . . . .
Spills on the keyboard . . . . . . . . . .
Error messages . . . . . . . . . . . .
Beep errors . . . . . . . . . . . . . .
Memory module problems . . . . . . . .
Ethernet problems . . . . . . . . . . .
Wireless-LAN problem . . . . . . . . . .
Bluetooth problem . . . . . . . . . . .
ThinkPad pointing device problems. . . . .
Keyboard problems . . . . . . . . . . .
Computer screen problems . . . . . . . .
External monitor problems . . . . . . . .
Audio problems . . . . . . . . . . . .
Fingerprint reader problems. . . . . . . .
Battery problems . . . . . . . . . . . .
ac power adapter problem . . . . . . . .
Power problems . . . . . . . . . . . .
Power button problem . . . . . . . . . .
Boot problem . . . . . . . . . . . . .
Sleep and hibernation problems . . . . . .
Hard disk drive problems . . . . . . . . .
Solid-state drive problem. . . . . . . . .
Software problem. . . . . . . . . . . .
USB problem . . . . . . . . . . . . .
Chapter 7. Recovery information . . . 73
Resetting your computer. . . . . . . . . . .
Using advanced startup options . . . . . . . .
fails to start . . . . . . . . . . . . . . . .
Chapter 8. Replacing devices . . . . . 75
Static electricity prevention . . . . . . . . . .
Disabling the built-in battery . . . . . . . . .
Replacing the bottom cover . . . . . . . . .
Replacing the memory module . . . . . . . .
Replacing the internal storage drive . . . . . .
Replacing the coin-cell battery . . . . . . . .
Chapter 9. Getting support . . . . . . 87
Before you contact Lenovo . . . . . . . . . .
ii
E470, E470c, and E475 User Guide
46
Getting help and service . . . . . . . . . . .
55
Using diagnostic programs . . . . . . . .
Lenovo Support Web site. . . . . . . . .
Calling Lenovo . . . . . . . . . . . . .
Purchasing additional services . . . . . . . .
57
57
information . . . . . . . . . . . . . . 91
58
58
Certification-related information . . . . . . . .
58
Wireless-related information . . . . . . . . .
59
Wireless interoperability . . . . . . . . .
60
61
antennas . . . . . . . . . . . . . . .
61
62
62
Export classification notice . . . . . . . . . .
63
Electronic emission notices. . . . . . . . . .
63
63
Declaration of Conformity . . . . . . . .
65
66
statement . . . . . . . . . . . . . . .
68
68
or Radio Equipment Directive . . . . . . .
68
69
69
69
70
which connect to the power mains with rated
70
71
Japan notice for ac power cord . . . . . .
71
71
Taiwan . . . . . . . . . . . . . . . .
Eurasian compliance mark . . . . . . . . . .
Brazil audio notice . . . . . . . . . . . . .
73
73
statements . . . . . . . . . . . . . . 97
73
General recycling information . . . . . . . . .
73
Important WEEE information . . . . . . . . .
Recycling information for Brazil . . . . . . . .
75
75
Union . . . . . . . . . . . . . . . . . .
76
Battery recycling information for Taiwan . . . . .
76
79
and Canada . . . . . . . . . . . . . . . .
82
Recycling information for China . . . . . . . .
Substances (RoHS) Directive . . . .
87
87
88
88
88
89
91
91
91
91
92
92
92
93
93
93
93
94
94
95
95
95
95
95
95
95
97
97
. . . . . . . . .
98
98
99
100
100
100
101
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Table of Contents
Troubleshooting
