Sony Xperia XZ Premium

When the phone lock code is turned on, it needs to be entered every time you turn on your phone.

Solution: Turn use of phone lock code on or off

Slide your finger downwards starting from the top of the screen.

Press the settings icon.

Press Lock screen & security.

Press Screen lock.

Press Pattern.

Press the required setting.

Slide your finger across the screen to connect at least four points and press CONTINUE.

Repeat the selected phone lock code and press CONFIRM.

Press the required setting.

Press DONE.

Press Screen lock and key in the current phone lock code.

Press None.

Press YES, REMOVE.

Press the Home key to return to the home screen.

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If your phone is network locked to Telstra and you try to use a SIM from another operator, the screen will tell that your SIM is invalid.

Solution: Contact us to have your phone unlocked.

You can check if your SIM is faulty by inserting it in another phone.

Solution: Please contact us to have a new SIM sent to you.

If your SIM has been permanently blocked, you'll need a new SIM.

Solution: Please contact us to have a new SIM sent to you.

If you key in an incorrect PIN, your phone can't start.

Solution: Check that the PIN is correct.

If your phone is network locked to another operator and you try to use a SIM from Telstra, the screen will tell you that your SIM is invalid.

Solution: Before you can use a Telstra SIM, you need to unlock your phone using an unlock code. To get the unlock code, contact the operator that locked your phone.

If you've keyed in an incorrect PIN three times in a row, you need to key in the PUK.

Solution: To retrieve your PUK please use our online form.