use interaction control search for it in settings u will get that u cn lock the screen touches lock key and choices u hav to lock other options too and after lressing certain combinations of key it will get unlocked and will require password to unlock the phone
Thank you for reaching out to the Samsung community! We would like to inform you that you can use screen lock to lock the device. Kindly go to settings>>lock screen and security>>lock type>>select lock type and apply.
Be sure to hit ♡ when you find an answer that works for you. For Further assistance, you can get in touch with us via Live Chat option by following- http://livechat.support.samsung.com/Customer_new/IN. You can also connect us via Samsung Members web community by following mentioned url-https://community.samsungmembers.com/en_IN#/
