Turning the screen lock on my mobile phone on or off
Using my internet browser
Ending active applications on my mobile phone
Choosing a ringtone for my mobile phone
Turning silent mode on my mobile phone on or off
Your SIM must be inserted before you can use your mobile phone.
Open the cover on the left side of your mobile phone.
Remove the SIM holder from your mobile phone.
Turn your SIM so the angled corner of your SIM is aligned with the angled corner of the SIM holder.Place your SIM in the SIM holder.
Insert the SIM holder into your mobile phone.
Close the cover again.
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