Sony Ericsson W550i User Guide - Page 6

Getting started To remove the SIM card Press the edge of the SIM card to release it from the slot. PIN You may need a PIN (Personal Identity Number) to activate the services in your phone. The PIN is associated with your SIM card, and not with the phone. Your PIN is provided by your network operator. When you enter your PIN, each digit appears as *, unless your PIN starts with the same digits as an emergency number, for example 112. The reason for this is to always let you make emergency calls without entering a PIN. If you make a mistake while entering your PIN, delete the number by pressing . If you enter the wrong PIN three times in a row, the SIM card is blocked and the message PIN blocked appears. To unblock it, you need to enter your PUK (Personal Unblocking Key) % 68 SIM card lock. Battery Some functions use more battery power than others and may cause a need for more frequent re-charging. If talk time or standby time becomes noticeably shorter, you may have to replace the battery. Only use approved batteries from Sony Ericsson % 79 Battery use and care. Turning on the phone and making calls Make sure that the phone is charged and your SIM card is inserted before you turn it on. When you have turned the phone on, you can use the setup wizard to quickly and easily prepare your phone for use. 6 This is the Internet version of the user's guide. © Print only for private use.