Owner manual

12. Replace the CPU door.

13. Replace the wireless local area network (WLAN)

14. Replace the wireless wide area network (WWAN)

15. Replace the hard drive.

16. Replace the optical drive.

17. Replace the keyboard.

18. Replace the keyboard trim.

19. Replace the memory.

20. Replace the back panel.

21. Replace the secure digital (SD) card.

22. Replace the subscriber identity module (SIM) card.

23. Replace the battery.

24. Follow the procedures in After Working Inside Your Computer.