HP Pavilion dm4-1018tx Entertainment Notebook PC - Manual (Page 28)

6. Remove the battery.
7. Insert the SIM card into the slot.
8. Replace the battery.
NOTE: HP Mobile Broadband will be disabled if the battery is not replaced.
9. Turn the computer right-side up, and then reconnect external power and external devices.
10. Turn on the computer.
Removing a SIM
To remove a SIM:
1. Shut down the computer. If you are not sure whether the computer is off or in Hibernation, turn
the computer on by pressing the power button. Then, shut down the computer through the
operating system.
2. Close the display.
3. Disconnect all external devices connected to the computer.
4. Unplug the power cord from the AC outlet.
5. Turn the computer upside down on a flat surface, with the battery bay toward you.
6. Remove the battery.
18 Chapter 2 Networking