Publisher:: Telstra
Name:: Telstra - Mobile Phones, Home Phones, NBN, Entertainment & More
Copyrighted By:: Telstra
Family Friendly:: Yes
Language:: English

Samsung Galaxy S9

Android 8.0

Search for a topic or a problem

Back to section Basic functions

I can't start my phone

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 and security.

Press Iris Scanner.

Press CONTINUE.

Press the required phone lock code and follow the instructions on the screen to create an additional phone lock code.

Press CONTINUE.

Follow the instructions on the screen to create the phone lock code using iris scanning.

Press the required settings.

Press DONE.

Press the Return key.

Press Screen lock type and key in the additional phone lock code you created earlier.

Press None.

Press REMOVE DATA.

Press REMOVE.

Press the Home key to return to the home screen.

1
Find "Lock screen and security"
- Slide your finger downwards starting from the top of the screen.
- Press the settings icon.
- Press Lock screen and security.
2
Create phone lock code using iris scanning
- Press Iris Scanner.
- Press CONTINUE.
- Press the required phone lock code and follow the instructions on the screen to create an additional phone lock code.
- Press CONTINUE.
- Follow the instructions on the screen to create the phone lock code using iris scanning.
- Press the required settings.
- Press DONE.
- Press the Return key.
3
Turn off use of phone lock code
- Press Screen lock type and key in the additional phone lock code you created earlier.
- Press None.
- Press REMOVE DATA.
- Press REMOVE.
4
Return to the home screen
- Press the Home key to return to the home screen.

Did this solve your problem?

The phone lock code is turned on

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 and security.

Press Iris Scanner.

Press CONTINUE.

Press the required phone lock code and follow the instructions on the screen to create an additional phone lock code.

Press CONTINUE.

Follow the instructions on the screen to create the phone lock code using iris scanning.

Press the required settings.

Press DONE.

Press the Return key.

Press Screen lock type and key in the additional phone lock code you created earlier.

Press None.

Press REMOVE DATA.

Press REMOVE.

Press the Home key to return to the home screen.

1
Find "Lock screen and security"
- Slide your finger downwards starting from the top of the screen.
- Press the settings icon.
- Press Lock screen and security.
2
Create phone lock code using iris scanning
- Press Iris Scanner.
- Press CONTINUE.
- Press the required phone lock code and follow the instructions on the screen to create an additional phone lock code.
- Press CONTINUE.
- Follow the instructions on the screen to create the phone lock code using iris scanning.
- Press the required settings.
- Press DONE.
- Press the Return key.
3
Turn off use of phone lock code
- Press Screen lock type and key in the additional phone lock code you created earlier.
- Press None.
- Press REMOVE DATA.
- Press REMOVE.
4
Return to the home screen
- Press the Home key to return to the home screen.

Did this solve your problem?

Your phone is locked to Telstra

The SIM is faulty

Your SIM has been permanently blocked

The entered PIN is incorrect

Your phone is network locked to another operator

You're asked to key in the PUK