Getting started10Installing the SIM or USIM card and batteryInsert the SIM or USIM card provided by the mobile telephone service provider, and theincluded battery.Only microSIM cards work with the device.1 Remove the back cover.Be careful not to damage your fingernails when you remove the back cover.Do not bend or twist the back cover excessively. Doing so may damage the cover.2 Insert the SIM or USIM card with the gold-coloured contacts facing downwards.Insert the primary SIM or USIM card into SIM card slot 1 ( 1 ) and the secondary SIM orUSIM card into SIM card slot 2 ( 2 ).12