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T card. When you need to take out the inserted card, please
switch off the device before taking it out.
2.4 Switch on/off
Long press the Switch on/off key to switch on/off the phone.
If the device is switched on but the SIM card isn't inserted, the
title bar will show no signal.
After inserting the SIM card, the screen will show the
signal
strength in the title bar when the phone is switched on:
Type in PIN code - if you have already set the SIM code.
Search—the handset will be searching for proper network
connection.