User's Guide

Base cover assembly . . . . . . . . . . . 54
Wireless-WAN card (for selected models) . . . 55
M.2 solid-state drive and thermal pad . . . . 57
Pen charger (for X1 Yoga only) . . . . . . . 59
Chapter 8. Help and support . . . . . 61
Frequently asked questions . . . . . . . . . . 61
Error messages . . . . . . . . . . . . . . . 62
Beep errors . . . . . . . . . . . . . . . . 63
Self-help resources . . . . . . . . . . . . . 64
Call Lenovo . . . . . . . . . . . . . . . . 65
Before you contact Lenovo . . . . . . . . 65
Lenovo Customer Support Center . . . . . . 65
Purchase additional services. . . . . . . . . . 66
Appendix A. Important safety
information . . . . . . . . . . . . . . . 67
Appendix B. Accessibility and
ergonomic information . . . . . . . . 81
Appendix C. Supplemental
information about the Ubuntu operating
system . . . . . . . . . . . . . . . . . 85
Appendix D. Compliance
information . . . . . . . . . . . . . . . 87
Appendix E. Notices and
trademarks . . . . . . . . . . . . . . . 101
ii X1 Yoga and X1 Carbon User Guide