Dell Latitude E6430s (Mid 2012) - Manual (Page 14)

4. Slide the SIM card out from the computer.
Installing the SIM Card
1. Slide the SIM card into its compartment.
2. Install the battery.
3. Follow the procedures in After Working Inside Your Computer .
Removing the Hard Drive
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the battery.
3. Remove the screws that secure the hard drive to the computer.
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