Phone not unlocking even though I have correct pattern

[Livia4]

Hi, I cant seem to be able to unlock my phone even though I am drawing the correct pattern and I dont have the fingerprint  option activated. I cant even switch my phone off or restart it as it is asking me to draw the pattern.

I am sure its correct as it has been the same one for over 3 years. I have the Samsung galaxy S8.

How can I resolve this issue ? Do I need to go in store?

Thank you

[BandOfBrothers]

Samsung Help Page _ I can't unlock my phone.  

My-pattern-lock-is-not-working-anymore. 

thedroidguy.com/how-to-fix-a-galaxy-s9-that-is-not-accepting-pattern-to-unlock-pattern-screen-unlock... 

As a very last resort Try logging into your Samsung Account on a laptop etc and reset the phone that way via find my mobile.

samsung.com/uk/support/mobile-devices/how-do-i-perform-factory-reset-on-my-mobile-device. 

🌈 Stay Safe & Stay Alert.  🌈