All you need to do is either flash it in fastboot using the command "fastboot flash recovery *insert name of twrp here*" or by booting to it in fastboot using the command "fastboot boot *insert name of twrp here*".Hello! Please, let me know if you just updated using by twrp! Here I've been using twrp version 3.3.1-3, but there is no security option. It is possible just update, without format data, etc? I using pin option to unlock the screen! Thks.
And it works fine