Device Guides

Apple iPhone 12

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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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I can't turn on my mobile phone

This troubleshooting guide will take you through a number of possible causes
to help you find a solution to your problem.

See how to turn on your mobile phone.

Possible cause 3:

Your mobile phone doesn't turn on correctly


See how to turn on your mobile phone.

Turn on your mobile phone
Tap and hold the Side button until your mobile phone is turned on.
Slide your finger upwards starting from the bottom of the screen.
Enter PIN
If your SIM is locked, 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.
Turn off your mobile phone
Tap the Top volume key.
At the same time, tap and hold the Side button until the power off icon is displayed.
Tap and drag the power off icon right.

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