User Guide - Windows 10
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Component Description
(1) Service door 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 
HP Support Assistant. To access HP Support Assistant, 
type support in the taskbar search box, and then select 
the HP Support Assistant app.
(2) Battery release latch Releases the battery.
(3) SIM slot Supports a wireless subscriber identity module (SIM) 
(select products only). The SIM slot is located inside the 
battery bay.
(4) Docking connector Connects an optional docking device.
(5) Service door release lock Locks the service door.
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