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Memory module problems . . . . . . . . . 75
Ethernet problems . . . . . . . . . . . . 76
Wireless-LAN problem . . . . . . . . . . 77
Bluetooth problem . . . . . . . . . . . . 77
ThinkPad pointing device problems . . . . . 77
Keyboard problems . . . . . . . . . . . 77
Computer screen problems . . . . . . . . 78
External monitor problems . . . . . . . . . 80
Audio problems . . . . . . . . . . . . . 81
Battery problems . . . . . . . . . . . . 82
Power button problem . . . . . . . . . . 83
Boot problems . . . . . . . . . . . . . 83
Software problem . . . . . . . . . . . . 83
Chapter 8. Recovery information . . . 85
Resetting your computer . . . . . . . . . . . 85
Using advanced startup options . . . . . . . . 85
Recovering your operating system if Windows 10
fails to start . . . . . . . . . . . . . . . . 85
Creating and using a recovery USB drive . . . . . 86
Chapter 9. Replacing devices . . . . . 87
Customer Replaceable Units. . . . . . . . . . 87
Static electricity prevention . . . . . . . . . . 87
Disabling the built-in battery . . . . . . . . . . 88
Replacing the bottom cover . . . . . . . . . . 88
Replacing a memory module. . . . . . . . . . 89
Replacing the M.2 solid-state drive . . . . . . . 91
Replacing the speaker assembly . . . . . . . . 93
Replacing the coin-cell battery . . . . . . . . . 95
Chapter 10. Getting support. . . . . . 97
Before you contact Lenovo . . . . . . . . . . 97
Getting help and service . . . . . . . . . . . 97
Lenovo Support Web site . . . . . . . . . 98
Calling Lenovo . . . . . . . . . . . . . 98
Purchasing additional services . . . . . . . . . 99
Appendix B. Important safety
information . . . . . . . . . . . . . . . 103
Appendix C. Regulatory
information . . . . . . . . . . . . . . . 115
Appendix F. ENERGY STAR model
information . . . . . . . . . . . . . . . 129
Appendix G. Notices. . . . . . . . . . 131
Appendix H. Trademarks . . . . . . . 133
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P1/X1 Extreme User Guide
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