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NOOK User Guide Your NOOK 31
Removable
Back Cover
Do not press on the middle of the back cover or bend your NOOK. Doing so might
damage the screens.
4 Look around the edges of your NOOK to see that the back cover is securely attached. If the
back cover is not securely attached, press edges together that did not seat correctly. If that does
not work, remove the back cover and repeat this procedure.
SIM Card
This section applies to the NOOK (Wi-Fi + 3G model) only.
The SIM card in your NOOK (Wi-Fi + 3G model) is pre-installed. It is used when your NOOK
connects to the Barnes & Noble eBookstore and NOOK data services over B&N Fast & Free
Wireless. You will never need to remove or change the SIM card. Specifically, please note the
following about the SIM card:
• You cannot use your NOOK’s SIM card in a dierent mobile device, for example, a mobile
phone.
• You cannot use a dierent SIM card, for example, from a mobile phone, in your NOOK.