Device Guides

Apple iPhone 4

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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 start up my mobile phone

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

Possible cause 3:

The wrong PIN is entered: Key in your correct PIN.Detailed instructions.

List view

1. 1. Turn on your mobile phone

Tap and hold On/Off until your mobile phone is turned on.
Drag the arrow right.
If required, tap Unlock.
If required, key in your PIN and tap OK.

2. 2. SIM rejected

If your SIM is rejected:
Contact your mobile phone store or your service provider.
Apple iPhone 4 (iOS4)

3. 3. Turn off your mobile phone

Tap and hold On/Off.
Drag the arrow right to turn off your mobile phone.
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