Basics15SIM or USIM card (nano-SIM card)Installing the SIM or USIM cardInsert the SIM or USIM card provided by the mobile telephone service provider.For dual SIM models, you can insert two SIM or USIM cards so you can have two phonenumbers or service providers for a single device. In some areas, data transfer speeds may beslower if two SIM cards are inserted in the device than when one SIM card is inserted.• Use only a nano-SIM card.• Use caution not to lose or let others use the SIM or USIM card. Samsung is notresponsible for any damages or inconveniences caused by lost or stolen cards.Some services that require a network connection may not be available depending onthe service provider.► Single SIM models:

Samsung SM-M115F User Manual