HP ProBook 6570b Getting Started page 26

Component
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18 Chapter 2 Getting to know your computer
Service door
Accessory battery connector
Description
Provides access to the hard drive bay, the wireless
LAN (WLAN) module slot, the WWAN module slot, and
the memory module slots.
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 through Help and Support.
Connects an optional accessory battery.