Zte C310 User Manual page 8

Explanation for
Mobile Phone with/without UIM Card
There are two types of ZTE CDMA Mobile phone, one need UIM
card inserted and another does not need. Sections or functions in this
manual are for the phone with UIM card. If your phone could be used
without UIM card, please pay attention to the following items:
1. You can use your phone without inserting the UIM card.
2. Some functions are only available with UIM and won't display,
such as,
You can save the new contact only in Phone, not in UIM.
You can save the new message only in Phone, not in UIM.
The message in Inbox can not be moved to UIM.
There is no PIN Lock function in Security Setting.
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