Device Guides

Apple iPhone 5c

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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.

We found 10 possible causes:

  1. The battery is flat
  2. Your SIM is faulty
  3. An incorrect PIN is entered
  4. Your SIM is blocked
  5. You're asked to key in your PUK
  6. Your mobile phone is locked to another service provider
  7. Your mobile phone is locked to Optus
  8. Your mobile phone isn't turned on correctly
  9. The phone lock code is turned on
  10. Your mobile phone isn't assembled correctly
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