18assembling and preparing your mobile phoneTo install the SIM or USIM card and battery,1. Remove the battery cover.2. Insert the SIM or USIM card.If the phone is on, press and hold [ ] to turnit off.• Place the SIM or USIM card in the phonewith the gold-coloured contacts facingdown.• Without inserting a SIM or USIM card, youcan use your phone’s non-network servicesand some menus.