Samsung Galaxy Tab S9+
It's not possible to start my tablet
Solution 6 of 6: The lock code is turned on
The lock code protects the contents of your tablet from unauthorised use (such as pictures and messages). When the lock code is turned on, it needs to be used every time you turn on your tablet and when it has been in sleep mode.
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 Next.
Press the required lock code and follow the instructions on the screen to create an additional lock code.
Press Register.
Follow the instructions on the screen to create the lock code using your fingerprint.
Press Done.
Press the required settings to turn them on or off.
Press the Return key.
Press Screen lock type and key in the additional lock code you created earlier.
Press None.
Press Remove data.
Press Remove.
Press the Home key to return to the home screen.