10.Insert the SIM card into the slot tray (1), swing the slot tray to the left and down (2), and then slide the slot tray to the left to secure it (3).
11.Align the tabs on the compartment cover with the notches on the computer (1), and then rotate the cover downward until it snaps into place (2).
12.Replace the battery.
NOTE: HP Mobile Broadband will be disabled if the battery is not replaced.
13.Reconnect external power.
14.Reconnect external devices.
15.Turn on the computer.
