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Communication Cards
DellStudio™1555ServiceManual
Subscriber Identity Module
Wireless Mini-Cards
Subscriber Identity Module
Subscriber Identity Modules (SIM) identify users uniquely through an International Mobile Subscriber Identity.
Installing the SIM
1. Follow the instructions in Before You Begin.
2. In the battery bay, slide the SIM into the compartment.
Removing the SIM
Press the SIM into the slot to release it. When it is partially ejected, remove the SIM from the battery bay.
Wireless Mini-Cards
Your computer supports three Mini-Card slots:
l Two full Mini-Card slots – for WWAN, WPAN, UWB, Bluetooth
®
l One half Mini-Card slot – for WLAN
The types of Mini-Cards supported are:
l Wireless Local Area Network (WLAN) — Half Mini-Card
l Ultra Wide Band (UWB) — Full Mini-Card
l Mobile broadband or Wireless Wide Area Network (WWAN) — Full Mini-Card
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal
surface (such as the back panel) on the computer.
CAUTION: Onlyacertifiedservicetechnicianshouldperformrepairsonyourcomputer.DamageduetoservicingthatisnotauthorizedbyDell™
is not covered by your warranty.
CAUTION: To help prevent damage to the system board, remove the main battery (see Before Working Inside Your Computer) before working
inside the computer.
1
SIM
2
battery bay
NOTE: Dell does not guarantee compatibility or provide support for Mini-Cards from sources other than Dell.
NOTE: Depending on the configuration of your system, one or more of the Mini-Cards might not be present.