Samsung Galaxy A40

Samsung Galaxy A40

Android 9.0

I can't start my Samsung Galaxy A40 Android 9.0

Cause 5 of 7: The phone lock code is turned on

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

Solution: Turn off phone lock code.

Step 1 of 16

Find "Fingerprints"

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

Step 2 of 16

Find "Fingerprints"

Press the settings icon.

Step 3 of 16

Find "Fingerprints"

Press Biometrics and security.

Step 4 of 16

Find "Fingerprints"

Press Fingerprints.

Step 5 of 16

Create phone lock code using a fingerprint

Press Continue.

Step 6 of 16

Create phone lock code using a fingerprint

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

Step 7 of 16

Create phone lock code using a fingerprint

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

Step 8 of 16

Create phone lock code using a fingerprint

Press Done.

Step 9 of 16

Create phone lock code using a fingerprint

Press the required settings.

Step 10 of 16

Create phone lock code using a fingerprint

Press the Return key twice.

Step 11 of 16

Turn off use of phone lock code

Press Lock screen.

Step 12 of 16

Turn off use of phone lock code

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

Step 13 of 16

Turn off use of phone lock code

Press None.

Step 14 of 16

Turn off use of phone lock code

Press Remove data.

Step 15 of 16

Turn off use of phone lock code

Press Remove.

Step 16 of 16

Return to the home screen

Press the Home key to return to the home screen.

1 Find "Fingerprints"

Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Biometrics and security.
Press Fingerprints.

2 Create phone lock code using a fingerprint

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.
Press the Return key twice.

3 Turn off use of phone lock code

Press Lock screen.
Press Screen lock type and key in the current phone lock code.
Press None.
Press Remove data.
Press Remove.

4 Return to the home screen

Press the Home key to return to the home screen.

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