HP ProBook 440 G2 Notebook PC - Manual (Page 34)

Component Description
CAUTION: To prevent an unresponsive system,
replace the wireless module only with a wireless
module authorized for use in the computer by the
governmental agency that regulates wireless devices
in your country or region. If you replace the module
and then receive a warning message, remove the
module to restore computer functionality, and then
contact support. To access Help and Support, select
Start > Help and Support.
(5) Battery bay Holds the battery.
24 Chapter 2 Getting to know your computer