Sony Ericsson K220 - Manual (Page 57)

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To turn the phone lock code on or off
1 Enter the new code and select OK .
2 Repeat the new code and select OK .
3 Select Protection and then select On .
4 Enter your phone lock code and select OK .
Q: How do I turn on and off T9 text input when
writing a text message?
A: Press and hold when entering text.
You will see “T9” at the top of the text message when T9
is activated.
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