Device Guides

Apple iPhone 5s

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iOS is the operating system software installed on your iPhone. To find out which version you have: Tap Settings, Tap General, Tap About, and view the version number.
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How to

Turn mobile phone on and off

Before you can turn on your mobile phone, you need to insert your SIM into your mobile phone.


List view

Turn on your mobile phone

Tap and hold On/Off until your mobile phone is turned on.

Enter PIN

If your SIM is locked, tap Unlock.
Key in your PIN and tap OK. The default PIN is 0000.
If an incorrect PIN is entered three times in a row, your SIM will be blocked. To unblock your SIM, you'll need to key in your PUK. The PUK can be obtained by contacting Customer Service. Please note: If an incorrect PUK is entered ten times in a row, your SIM is blocked permanently. In this case, you'll need a new SIM from Optus.
0000

Turn off your mobile phone

Tap and hold On/Off.
Tap and drag the power off icon right.
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