Sony Ericsson T28s manual 7

2. Raise the edge of the SIM card and slide it out.

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The PIN

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Most SIM cards are supplied with a security code, also known as PIN

(Personal Identity Number), which you need to access the network. Every

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time you turn on your phone, you are asked to enter your PIN. You will find

your PIN in the information from your operator.

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Some operators may have services that require

a second PIN, your PIN2.

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You should be careful with your PIN, since it is your protection against

unauthorized use of your subscription.

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If your PIN is entered incorrectly three timesU

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in a row, the SIM card is

blocked. If this happens, you can unlock it by using youra

PUK (Personal

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Unblocking Key code), which you also get from your operator.

The Battery

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Your T28 comes with a lithiumc battery. The battery is not charged when you

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to switch the phone on. We

buy your phone, but there may be enough poweru

recommend that you charge the battery up to three hours before you use the

phone for the first time.

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Attaching the Battery to Your Phone

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oPlace the battery on the back of the phone and push until you hear a click.

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When to Charge the Battery

The battery that comes with your phone can be charged whenever you wish

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without affecting its performance. You can also charge the battery when the

phone is off.

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To remind you that you will soon need to charge the battery or replace it with

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charged one:

• an alarm signal (a short beep) sounds and the message Attention! Battery low

appears in the display

Preparing Your Phone for Use