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and maintenance information . . . . . 49
Accessibility information . . . . . . . . . . .
Ergonomic information . . . . . . . . . . . .
Cleaning and maintenance . . . . . . . . . .
Chapter 5. Security . . . . . . . . . . 55
Using passwords . . . . . . . . . . . . . .
Passwords introduction . . . . . . . . . .
Hard disk security . . . . . . . . . . . . . .
Setting the security chip . . . . . . . . . . .
Using the fingerprint reader . . . . . . . . . .
Deleting data from your storage drive . . . . . .
Using firewalls . . . . . . . . . . . . . . .
Protecting data against viruses . . . . . . . . .
configuration . . . . . . . . . . . . . . 63
Installing device drivers . . . . . . . . . . . .
Using the ThinkPad Setup program . . . . . . .
Configuring ThinkPad Setup . . . . . . . .
Changing the startup sequence . . . . . . .
Updating the UEFI BIOS. . . . . . . . . .
BIOS menu . . . . . . . . . . . . . . .
Using system management . . . . . . . . . .
Chapter 7. Configuring RAID . . . . . 81
utility . . . . . . . . . . . . . . . . . . .
Creating RAID volumes . . . . . . . . . .
Deleting RAID volumes . . . . . . . . . .
Rebuilding RAID 1 volumes . . . . . . . .
computer problems . . . . . . . . . . 85
General tips for preventing problems . . . . . .
. . . . . . . . . . . . . .
Computer stops responding . . . . . . . .
Spills on the keyboard . . . . . . . . . .
Error messages . . . . . . . . . . . . .
Beep errors. . . . . . . . . . . . . . .
Memory module problems . . . . . . . . .
Ethernet problems . . . . . . . . . . . .
Wireless-LAN problem . . . . . . . . . .
Wireless-WAN problem . . . . . . . . . .
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P51 User Guide
Bluetooth problem . . . . . . . . . . . .
ThinkPad pointing device problems . . . . .
49
Keyboard problems . . . . . . . . . . .
51
Computer screen problems . . . . . . . .
52
External monitor problems . . . . . . . . .
Audio problems . . . . . . . . . . . . .
Fingerprint reader problems . . . . . . . .
55
Battery problems . . . . . . . . . . . .
55
ac power adapter problem . . . . . . . . .
56
Power problems . . . . . . . . . . . . .
57
Power button problem . . . . . . . . . .
57
Boot problems . . . . . . . . . . . . .
58
60
Hard disk drive problems . . . . . . . . . 100
60
Solid-state drive problem . . . . . . . . . 100
61
Software problem . . . . . . . . . . . . 100
USB problem . . . . . . . . . . . . . . 101
Docking station problem . . . . . . . . . 101
63
64
Chapter 9. Recovery information . . . 103
64
Resetting your computer . . . . . . . . . . . 103
65
Using advanced startup options . . . . . . . . 103
65
66
fails to start . . . . . . . . . . . . . . . . 103
66
Creating and using a recovery USB drive . . . . . 104
78
Chapter 10. Replacing devices . . . . 105
Static electricity prevention . . . . . . . . . . 105
81
Replacing the removable battery . . . . . . . . 105
Replacing the micro SIM card . . . . . . . . . 107
81
Replacing the bottom cover . . . . . . . . . . 107
82
Replacing the internal storage drive . . . . . . . 108
82
Replacing the M.2 solid-state drive . . . . . . . 111
83
83
cover . . . . . . . . . . . . . . . . . . . 114
84
Replacing the coin-cell battery . . . . . . . . . 115
Replacing the keyboard. . . . . . . . . . . . 117
Replacing the wireless-WAN card. . . . . . . . 121
85
keyboard . . . . . . . . . . . . . . . . . 123
85
Chapter 11. Getting support. . . . . . 127
86
Before you contact Lenovo . . . . . . . . . . 127
86
Getting help and service . . . . . . . . . . . 127
87
Lenovo Support Web site . . . . . . . . . 128
87
Calling Lenovo . . . . . . . . . . . . . 128
88
Purchasing additional services . . . . . . . . . 129
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99
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99
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Table of Contents
Troubleshooting
