Dell Precision M6600 (Mid 2011) - Manual (Page 19)

Subscriber Identity Module (SIM)
Card
5
Removing The Subscriber Identity Module (SIM )Card
1. Follow the procedures in Before Working On Your Computer .
2. Remove the battery .
3. Slide the Subscriber Identity Module (SIM) outward away from the slot.
4. Pull out the SIM from the slot.
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