Ever wanted to use the confirm pin without tapping ok feature but don't want to set a 6 digit pin code? Well I've got the solution:-Head to settings>Lock screen and AOD>Screen lock type
Once there, click on the "pin" option and make your desired 4 digit pin, while also adding any 2 number at the end. After the option "confirm pin without tapping ok" appears toggle it on>off>on then remove the 2 digits in your pin that you do not wish to keep. After that, your phone should automatically confirm the pin without the painful tapping of "ok" every time you want to unlock your phone.
