Samsung Galaxy S21 Ultra 5G

Android 11.0

Search for a topic or a problem

Back to section Getting started

I can't start my phone

Turn use of phone lock code on or off

Slide two fingers downwards starting from the top of the screen.

Press the settings icon.

Press Lock screen.

Press Screen lock type.

Press Fingerprints.

Press Continue.

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

Follow the instructions on the screen to create the phone lock code using your fingerprint.

Press Done.

Press the required settings to turn them on or off.

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 "Screen lock type"
- Slide two fingers downwards starting from the top of the screen.
- Press the settings icon.
- Press Lock screen.
- Press Screen lock type.
2
Create phone lock code using a fingerprint
- Press Fingerprints.
- Press Continue.
- Press the required phone lock code and follow the instructions on the screen to create an additional phone lock code.
- Follow the instructions on the screen to create the phone lock code using your fingerprint.
- Press Done.
- Press the required settings to turn them on or off.
- 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 two fingers downwards starting from the top of the screen.

Press the settings icon.

Press Lock screen.

Press Screen lock type.

Press Fingerprints.

Press Continue.

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

Follow the instructions on the screen to create the phone lock code using your fingerprint.

Press Done.

Press the required settings to turn them on or off.

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 "Screen lock type"
- Slide two fingers downwards starting from the top of the screen.
- Press the settings icon.
- Press Lock screen.
- Press Screen lock type.
2
Create phone lock code using a fingerprint
- Press Fingerprints.
- Press Continue.
- Press the required phone lock code and follow the instructions on the screen to create an additional phone lock code.
- Follow the instructions on the screen to create the phone lock code using your fingerprint.
- Press Done.
- Press the required settings to turn them on or off.
- 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