Sony VAIO VPCZ2 - Manual (Page 76)

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Using Your VAIO Computer >
Using the Wireless WAN
6 Insert the SIM card holder into the SIM card slot.
!
Do not touch the printed circuit on the SIM card. Be sure to hold your computer firmly before inserting or removing the SIM card holder.
Do not damage the SIM card in any way, either by bending or exerting pressure on the card.